Excellent References: 

HTML:

TITLE: Instant HTML Programmer's Reference, HTML 4.0 Edition, Second Edition ISBN: 1861001568 Publisher: Wrox Press, Incorporated Publish Date: 1 January 1998 Author: Wright, Steve / Homer, Alex/ Ullman, Chris Binding: Paperback 464 pages List Price: US 19.95

DHTML:

TITLE: Internet Explorer 5 Dynamic HTML Programmer's Reference ISBN: 1861001746 Publisher: Wrox Press Inc. Publish Date: 1 May 1999 Author: Francis, Brian / Homer, Alex/ Ullman, Chris Binding: Mass Market Paperback 551 pages List Price: US 24.99

TITLE: Instant IE4 Dynamic HTML : Programmer's Reference ISBN: 1861000685 Publisher: Wrox Press (UK) Publish Date: 1 June 1997 Author: Homer, Alex / Ullman, Chris   Binding: Paperback 500 pages List Price: US 24.95

TITLE: Professional Dynamic HTML & IE 4 Programming ISBN: 1861000707 Publisher: Wrox Press, Incorporated Publish Date: 1 November 1997 Author: Barta, Mike (Edt)/ Bonnell, Jon/ Enfield, Andres/ Esposito, Dino Binding: Paperback 850 pages 800 pages List Price: US 49.95

TITLE: Dynamic HTML Reference And Software Development Kit: Comprehensive Reference To DHTML For Microsoft Internet Explorer 5.0 ISBN: 0735606382 Publisher: Microsoft Press Publish Date: 1 May 1999 Author: Microsoft Corporation Staff   Binding: Paper cover book List Price: US 49.99

TITLE: Instant Netscape 4 Dynamic HTML Programmer's Reference ISBN: 1861001193 Publisher: Wrox Pr Inc Publish Date: 1 August 1997 Author: Homer, Alex / Ullman, Chris   Binding: Paperback 430 pages List Price: US 24.95

TITLE: Dynamic HTML : The Definitive Reference ISBN: 1565924940 Publisher: O'Reilly & Associates, Incorporated Publish Date: 1 August 1998 Author: Goodman, Danny   Binding: Paperback 1073 pages 1000 pages List Price: US 39.95

TITLE: Dynamic HTML Web Magic (Book and CD) ISBN: 1568304218 Publisher: Hayden Book Company Publish Date: 30 September 1997 Author: Hayden Development Group Staff / Rouyer, Jeff   Binding: Paperback 296 pages 296 pages List Price: US 41.99

TITLE: Dynamic HTML Power Guide; The Power Guide to Developing Cross-Platform Web Applications With CDROM ISBN: 0764580531 Publisher: I D G Books Worldwide Publish Date: January 1998 Author: Powers, Shelley   Binding: Paperback 450 pages List Price: US 39.99

JavaScript:

TITLE: Instant Javascript ISBN: 1861001274 Publisher: Wrox Press (UK) Publish Date: 1 February 1998 Author: Microsoft Corporation Staff Binding: Trade Paperback List Price: US 24.95

TITLE: Professional JAVA Script Objects ISBN: 1861001894 Publisher: Wrox Press Inc. Publish Date: 1 December 1998 Author: Myers, Tom / Nakhimovsky, Alexander D.   Binding: Paper cover book List Price: US 39.99

TITLE: Javascript : The Definitive Guide, Third Edition ISBN: 1565923928 Publisher: O'Reilly & Associates, Incorporated Publish Date: January 1998 Author: Flanagan, David / Shafer, Dan Binding: Paperback 776 pages List Price: US 39.95

TITLE: Javascript Bible, Third Edition (w/ CD) ISBN: 0764531883 Publisher: International Data Group Publish Date: 1 March 1997 Author: Danny Goodman,Foreword by Bredan Eich Binding: Trade Paperback List Price: US 49.99

TITLE: Professional Style Sheets With Html And Xml ISBN: 1861001657 Publisher: Wrox Pr Inc Publish Date: 1 July 1998 Author: Boumphrey, Frank   Binding: Mass Market Paperback 673 pages List Price: US 39.99

Internet Explorer:

TITLE: Microsoft Internet Explorer Resource Kit (Microsoft Professional Editions) ISBN: 1572318422 Publisher: Microsoft Press Publish Date: 30 April 1998 Author: Microsoft Press Binding: Trade Paperback List Price: US 49.99

TITLE: Official Microsoft Internet Explorer 4 Site Builder Toolkit With CDROM ISBN: 1572315725 Publisher: Microsoft Press Publish Date: 1 December 1997 Author: James E. Palmer Binding: Paperback 500 pages List Price: US 39.99

I have yet to find any official Netscape References: