ISBN

ISBN stands for International Standard Book Number. An ISBN number is a unique 10-digit identifier for each book.

DuoSoft’s publications all have ISBN numbers. We have grouped them here on two web pages:

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DuoSoft
17 Elva Avenue
Killara NSW 2071
Australia

© DuoSoft, 2007

Phone: 02 9498 3255
Fax:     02 9498 6586
Email: info@duosoft.com.au

ABN:   29 448 484 686

Revised: 05 February, 2007