Odum, Eugene P. Fundamentals of ecology / Eugene P. Odum. - 3rd ed. - Philadelphia : W. B. Saunders, 1971 - xiv, 574p. : 26x18cm. ill. ; Includes bibliography and index ISBN: 0-7216-6941-7 : Rs.60 Subjects--Topical Terms: ECOLOGY Dewey Class. No.: 574.5 / ODU-FUN