John W. Erdman Books

Present Knowledge in Nutrition

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Present Knowledge in Nutrition, 10th Edition provides comprehensive coverage of all aspects of human nutrition, including micronutrients, systems biology, immunity, public health, international nut...

Antioxidants Chemical Physiological Nutritional and Toxicological Aspects

By Helmut Sies, Gary M. Williams, John W. Erdman, George Towne Baker

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Present knowledge in nutrition

By John W. Erdman

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Present Knowledge in Nutrition

By Ian A. MacDonald, Steven H. Zeisel, John W. Erdman, Erdman John W. Jr.

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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.