Copyright © 2018
by
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
The Goodheart-Willcox Company, Inc. Brand Disclaimer: Brand names, company names, and illustrations for
products and services included in this text are provided for educational purposes only and do not represent or imply
endorsement or recommendation by the author or the publisher.
The Goodheart-Willcox Company, Inc. Safety Notice: The reader is expressly advised to carefully read, understand,
and apply all safety precautions and warnings described in this book or that might also be indicated in undertaking
the activities and exercises described herein to minimize risk of personal injury or injury to others. Common sense and
good judgment should also be exercised and applied to help avoid all potential hazards. The reader should always
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Willcox Publisher product are provided solely as a convenience to you. These resources and listings were reviewed at
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