Copyright © 2018
The Goodheart-Willcox Company, Inc.
Previous editions copyright 2014; (under the title Learning for Earning) 2012, 2009, 2006, 2004,
1999, 1995, 1991
All rights reserved. No part of this work may be reproduced, stored, or transmitted in any form
or by any electronic or mechanical means, including information storage and retrieval systems,
without the prior written permission of The Goodheart-Willcox Company, Inc.
Manufactured in the United States of America.
ISBN: 978-1-63126-605-8
2 3 4 5 6 7 8 9 18 20 19 18 17
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and apply all safety precautions and warnings described in this book or that might also be indicated in undertaking
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Cover images:
Tyler Olson/
Monkey Business Images/
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