Bio-ecology Clements, Frederic E. (Frederic Edward), 1874-1945 creator Shelford, Victor E. (Victor Ernest), 1877-1968 contributor text book New York J. Wiley & Sons, inc 1939 1939
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ENG Animal ecology Botany Ecology Plant ecology Zoology QH541 .C54 575.3 https://www.biodiversitylibrary.org/bibliography/6424 1068593 39018980 10.5962/bhl.title.6424 DLC