George P. Parks Books

THEA

By Jocelyn Chadwick Joshua, Robert Blake Truscott, Ellen Conner, George P. Parks, Clara Wajngurt

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Offers advice on test-taking strategies, provides sample questions and answers, and includes a practice exam covering all three test sections.

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

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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