Webb Robert H. Books

Gr and Canyon

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Photographs made in Grand Canyon a century ago may provide us with a sense of history; photographs made today from the same vantage points give us a more precise picture of change in this seemingly...

Gr and Canyon

By Webb Robert H.

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Historic channel change of Kanab Creek, southern Utah and northern Arizona, 1991

By Webb Robert H.

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Kidnapped

By Webb Robert H., Robert Louis Stevenson

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Design with the Desert

By Richard Malloy, Anthony Floyd, Webb Robert H., John Brock, Margaret Livingston

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Elementary Wave Optics

By Webb Robert H.

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Changing Mile Revisited

By James Rodney Hastings, Janice Emily Bowers, Webb Robert H., Raymond M. Turner

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Grand Canyon a Century of Change

By Webb Robert H.

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Requiem for the Santa Cruz

By Julio L. Betancourt, Webb Robert H., Bernard L. Fontana, Raymond M. Turner, R. Roy Johnson

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Floods Droughts and Climate Change

By Michael Collier, Webb Robert H.

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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.