Carl R. Green Books

The samoyed

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Discusses the history, physical characteristics, care, and breeding of this medium-sized dog known for its ability to withstand the cold.

The English springer spaniel

By William R. Sanford

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Discusses the history, physical characteristics, care, and breeding of this dog known for its excellent retrieval skills.

The dodo

By William R. Sanford

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Discusses the flightless bird that lived on the island of Mauritius and why it became extinct in the 1600s. Also describes the efforts of conservationists to protect endangered birds.

The woolly mammoth

By William R. Sanford

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Describes what is known of this prehistoric ancestor of the elephant, based on the preserved remains of mammoth bodies.

Legendary Heroes of the Wild West Series

By Carl R. Green, William R. Wi Sanford

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The German shepherd

By William R. Sanford

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Discusses the history, physical characteristics, care, and breeding of the German shepherd.

The dachshund

By William R. Sanford

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Discusses the history, physical characteristics, care, and breeding of this long-bodied dog, originally used for the hunting of small mammals.

Babe Didrikson Zaharias

By William R. Sanford

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A biography of the female athlete who broke records in golf, track and field, and a variety of other sports.

Joe DiMaggio

By William R. Sanford

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A biography of one of baseball's greatest players. Includes a trivia quiz.

Jim Thorpe

By William R. Sanford

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A biography of Jim Thorpe, one of the greatest all-around athletes in history.

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.