Patrick M. Regan Books

Organizing societies for war
Civil Wars and Foreign Powers
Civil Wars and Foreign Powers: Outside Intervention in Intrastate Conflict
Civil Wars and Foreign Powers: Outside Intervention in Intrastate Conflict

By Patrick Regan, Patrick M. Regan

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"Recent large-scale intervention by the United States and its allies in Europe in the conflict in Bosnia and Kosovo again raises the question: Under what conditions do third parties intervene in ci...

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The Peace Continuum: What It Is and How to Study It
The Peace Continuum: What It Is and How to Study It
Peace Continuum
Sixteen Million One
Sixteen Million One

By Patrick M. Regan

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Sixteen Million One
Sixteen Million One

By Patrick M. Regan

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Sixteen Million One
Sixteen Million One

By Patrick M. Regan

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Politics of Global Climate Change

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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.

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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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