Clarke, George Leonard. Elements of ecology. / George L. Clarke. - New York : Wiley, 1954. - 534 p. : ill. - Contribution no. 704 from the Woods Hole Oceanographic Institution . - Contribution ... from the Woods Hole Oceanographic Institution ; no. 704. . ISBN: 0000015975 Subjects--Topical Terms: Ecology. Dewey Class. No.: 574.5/C598