Nicholson, E. (1968). Handbook to the conservation section of the international biological programme. Conservation of Terrestrial Biological Communities.
Citace podle Chicago (17th ed.)Nicholson, E.M. Handbook to the Conservation Section of the International Biological Programme. London: Conservation of Terrestrial Biological Communities, 1968.
Citace podle MLA (9th ed.)Nicholson, E.M. Handbook to the Conservation Section of the International Biological Programme. Conservation of Terrestrial Biological Communities, 1968.
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