Oosting, H. J. (1956). The study of plant communities an introduction to plant ecology (2a. ed.). W. H. Freeman.
Lua i Stíl Chicago (17ú heag.)Oosting, Henry J. The Study of Plant Communities an Introduction to Plant Ecology. 2a. ed. San Francisco: W. H. Freeman, 1956.
Lua MLA (9ú heag.)Oosting, Henry J. The Study of Plant Communities an Introduction to Plant Ecology. 2a. ed. W. H. Freeman, 1956.
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