Downing, J. A., & Rigler, F. H. (1984). A manual on methods for the assessment of secondary productivity in fresh waters (2a. ed.). Blackwell Scientific.
Citace podle Chicago (17th ed.)Downing, John A., a Frank H. Rigler. A Manual on Methods for the Assessment of Secondary Productivity in Fresh Waters. 2a. ed. Oxford: Blackwell Scientific, 1984.
Citace podle MLA (9th ed.)Downing, John A., a Frank H. Rigler. A Manual on Methods for the Assessment of Secondary Productivity in Fresh Waters. 2a. ed. Blackwell Scientific, 1984.
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