Douglas Auld Books

Economic thinking and pollution problems

By Douglas Allen Lauriston Auld

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Economic Thinking and Pollution Problems

By Douglas Auld

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High Throughput Screening Methods

By Sean Ekins, Greg Hoffman, Douglas Auld, Joshua A. Bittker, Nathan T. Ross

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The American dictionary of economics

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Explains the theories of imporatant economists, discusses the history of economic organizations, and defines the terminology and concepts of modern economics.

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.