David Sortino Books

A Guide To How Your Child Learns

By David P. Sortino, David Sortino, Cassell, Jay

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Published annually for more than eighty years, the Shooter's Bible is the most comprehensive and sought-after reference guide for new firearms and their specifications, as well as for thousands o...

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If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

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