Duffiel Guy Books

Fundamentos De Teología Pentecostal

By Guy P. Duffield, Duffiel Guy, Duffield Guy P

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Éste es un libro de estudio doctrinal completo y funcional para el cuerpo de Cristo en general, no solo para pentecostales. Su uso es recomendado especialmente para: • Seminarios • Líderes • Instit...

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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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