Discusses natural structures ranging in size from a seedling to canyons and human-made structures that mimic nature. Title: What Are Natural Structures? Author: Kalman, Bobbie Publisher: Crabtree Pub Co Publication Date: 2009/01/30 Number of Pages: 24 Binding Type: SCHOOL AND LIBRARY Library of Congress: 2008048645 BRAND : Kalman, Bobbie
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