John S. Bowman Books

The Civil War Almanac
The Civil War Almanac

By John S. Bowman

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The Twentieth Century
Vietnam War
Vietnam War

By John S. Bowman

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Frommer s Greek islands
Frommer s Greek islands

By John Stewart Bowman

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A travel guide to the Greek Islands, with tips on restaurants and hotels, shopping and entertainment, and interesting tourist attractions.

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The National League
The National League

By John S. Bowman, Joel Zoss

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The Civil War The Definitive Reference Including a Chronology of Events and Encyclopedia and the memoirs of Grant and Lee
Encyclopedia of the Civil War
Whos Who in the Civil War
Whos Who in the Civil War

By John S. Bowman

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Chronicles of the Civil War
Founding Fathers

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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.

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