Jon Igelmo Zaldivar Books

Historia de la educacion
Rethinking Freire and Illich
Catholic Education in the Wake of Vatican II
Catholic Education in the Wake of Vatican II
Ivan Illich Fifty Years Later

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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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