Oosting, Henry John 1903- The study of plant communities : an introduction to plant ecology / Henry John Oosting. - 2d ed - San Francisco : W. H. Freeman, 1956. Includes bibliographies LCCN: 56011029 Subjects--Index Terms: ბოტანიკა მცენარეთა ეკოლოგია LC Class. No.: QK901 Dewey Class. No.: 581.5