David T. Barnard Books

Pascal for Engineers

By David T. Barnard

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FORTRAN 77 for Engineers and Scientists

By David B. Skillicorn, David T. Barnard

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Effective Fortran 77 for engineers & scientists

By David T. Barnard

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With Skilful Hand

By David T. Barnard

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"In With Skillful Hand, one of the most complex figures of ancient scriptures is brought to life. David Barnard takes biblical stories and the formal recorded history about King David as the basis...

Pascal programming problems and applications

By David T. Barnard

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Pascal programming problems and applications

By David T. Barnard

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Microcomputer programming with microsoft BASIC

By Crawford Robert G.

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Microcomputer programming with microsoft BASIC

By Crawford Robert G.

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Data structures

By David T. Barnard

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Effective Fortran 77 for engineers and scientists

By David T. Barnard

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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.