T.C. Campbell Books

Chemical & radionuclide food contamination.

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What About the Food You Eat

By T Colin Campbell, T. C. Campbell

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Indictment

By Campbell T. C.

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Six members of the Doyle family died as their home blazed in April 1984. The pressure was on the police to catch someone and punish them. In October, T.C. Campbell was found guilty and this is his...

Indictment

By T.C. Campbell, Reg McKay

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The wilderness years

By Campbell T. C.

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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.