Judith Palfrey Books

Community child health

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Community Child Health is designed to orient physicians, nurses, social workers, public health officers, and allied professionals to the world of children and to help them devise practice styles an...

Community Child Health

By Judith S. Palfrey

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The Disney encyclopedia of baby and child care

By Judith Palfrey

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Disney Encyclopedia of Baby and Childcare

By Irving Schulman, M.D. Marcia I. New, Samuel L. Katz, Judith Palfrey

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Child Health in America

By Judith S. Palfrey

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Child Health in America

By Judith S. Palfrey

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Global child health advocacy

By Zulfiqar Ahmed Bhutta, Stephen Berman, Adenike Grange, Judith Palfrey

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Child Health in America

By Judith S. Palfrey

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Child Health in America

By Judith Palfrey

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Global child health advocacy

By Zulfiqar Ahmed Bhutta, Stephen Berman, Adenike Grange, Judith Palfrey

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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.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.