APA (7th ed.) Citation

Downing, J. A., & Rigler, F. H. (1984). A Manual on methods for the assessment of secondary productivity in fresh waters (2nd ed.). Blackwell Scientific.

Chicago Style (17th ed.) Citation

Downing, John A., and Frank H. Rigler. A Manual on Methods for the Assessment of Secondary Productivity in Fresh Waters. 2nd ed. Oxford: Blackwell Scientific, 1984.

MLA (9th ed.) Citation

Downing, John A., and Frank H. Rigler. A Manual on Methods for the Assessment of Secondary Productivity in Fresh Waters. 2nd ed. Blackwell Scientific, 1984.