John Q. Walker Books

Cpi-C Programming In C

By John Q. Walker, Walker

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Cpi-C Programming In C: An Application Developer'S Guide To Appc/Book And Disk

By John Q. Walker, Peter J. Schwaller, John Q., II Walker

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If you program in C or C[superscript ++] and want to improve your client/server skills, this book will tell you everything you need to know about using CPI-C (the Common Programming Interface for C...

Chromatographic Systems; Maintenance And Troubleshooting

By John Q. Walker

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[by] John Q. Walker, Minor T. Jackson, Jr. [and] James B. Maynard. Includes Bibliographical References.

Chromatographic Systems: Maintenance And Troubleshooting

By John Q. Walker, Minor T., Jr. Jackson, John W. Walker, James B. Maynard, Minor T. Jackson

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Drug Testing In Sports

By John Q. Walker, David-L, Black, David L Black, Black, David L

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Chromatographic Systems: Problems And Solutions

By John Q. Walker, John W. Walker

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Chromatographic Systems: Maintenance And Troubleshooting

By John Q. Walker

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Chromatographic Systems: Maintenance And Troubleshooting, Second Edition Provides A Clear And Concise Guide For Chromatographic Maintenance. This Book Covers Troubleshooting And Repair Procedures T...

Taking Charge Of Your VoIP Project

By John Walker, John Q. Walker, Jeffrey Hicks, Jeffrey T. Hicks

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Strategies and solutions for successful VoIP deployments Justify your network investment The step-by-step approach to VoIP deployment and management enables you to plan early and properly for succ...

Taking Charge Of Your VoIP Project

By John Q. Walker, Jeffrey T. Hicks

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Strategies and solutions for successful VoIP deployments Justify your network investment The step-by-step approach to VoIP deployment and management enables you to plan early and properly for succ...

Chromatographic Systems: Maintenance And Troubleshooting

By John Q. Walker

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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.