Robert L. Hastings Books

UFOs and nukes

By Robert L. Hastings

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UFOs & Nukes: Extraordinary Encounters At Nuclear Weapons Sites

By Robert L. Hastings, Robert Lambert Hastings

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SECOND EDITION—REVISED AND UPDATEDThe reality of UFO incursions at American nuclear weapons facilities has been convincingly established. Hundreds of U.S. military veterans now openly discuss these...

UFOs Und Atomwaffen: Unheimliche Begegnungen In Der Nähe Von Nuklearwaffendepots

By Robert L. Hastings

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Jeder hat schon einmal von den Berichten über die Bergung eines abgestürzten außerirdischen Raumschiffs nahe Roswell im US-Bundesstaat New Mexico im Juli 1947 gehört. Aber die meisten Menschen habe...

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.