Ecology: The Economy of Nature
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Seventh Edition
Robert Ricklefs
University of Missouri–St. Louis
Rick Relyea
University of Pittsburgh
W.H. Freeman and Company
A Macmillan Higher Education Company
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Publisher: Susan Winslow
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Text Design: MGMT. design
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Illustrations: MGMT. design and Nicolle R. Fuller
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Library of Congress Control Number: 2013943309
ISBN: 1-4641-3681-5 (complimentary copy)
ISBN-13: 978-1-4292-4995-9
ISBN-10: 1-4292-4995-1
©2014, 2008, 2001, 1997 by W.H. Freeman and Company.
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First printing
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