Shukla, R. S. A textbook of plant ecology including ethnobotany and soil science / R S Shukla and P S Chandel. - 10th rev. ed. - New Delhi : S. Chand & company Ltd. , 2005. - viii, 538 p. : ill. ; 22 cm. Includes index. ISBN: 9788121905480 8121905486 Subjects--Topical Terms: Plant ecology.--Environmental Science Dewey Class. No.: 581.7