Douglas Allan Books

The Physics Of Hydrogenated Amorphous Silicon: Electronic And Vibrational Properties

By Douglas Allan, J. D. Joannopoulos, Professor John D. Joannopoulos Phd, Gerald Lucovsky Phd (Eds.)

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With contributions by numerous experts

Seal On The Rocks

By Oxford Scientific Films, Douglas Allan, Douglas Allan

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Text And Photographs Depict Seals Feeding, Breeding, And Defending Themselves In Their Natural Habitats.

The World Of Seals

By Oxford Scientific Films, Allan Douglas, Douglas Allan, David Saintsing

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32 unnumbered pages

The Seal On The Rocks

By Doug Allen, Douglas Allan

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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.