James P.Lewis. Project Planning,Scheduling,and Control:The Ultimate Hands-On Guide to Bringing Projects in On Time and On Budget,Fifth Edition.ISBN 0-07-174652-8Copyright 2011 by James P.LewisThis authorized Chinese translation edition is jointly published by McGraw-Hill Education (Asia) and China Machine Press.This edition is authorized for sale in the Peoples Republic of China only,excluding Hong Kong,Macao SAR and Taiwan.Copyright 2012 by McGraw-Hill Education (Asia),a division of the Singapore Branch of The McGraw-Hill Companies,Inc. and China Machine Press.No part of this publication may be reproduced or transmitted in any form or by any means,electronic or mechanical,including without limitation photocopying,recording,taping,or any database,information or retrieval system,without the prior written permission of the publisher.