APA (7th ed.) Citation

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

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. 2η. Oxford: Blackwell, 1984.

MLA (8th ed.) Citation

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

Warning: These citations may not always be 100% accurate.