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Published by Penguin Random House LLC

001-313874-JUN2019.

Copyright © 2019 by Karen Ryan

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International Standard Book Number: 978-1-46548-372-0

E-ISBN: 978-1-46548-943-2

Library of Congress Catalog Card Number: 20189600707

21 20 19 5 4 3 2 1

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Reprinted and updated from The Complete Idiot’s Guide to Crystals