APA (7th ed.) Citation

Ricker, W. E. (1968). Methods for Assessment of fish production in fresh waters. International Biological Programme.

Chicago Style (17th ed.) Citation

Ricker, W. E. Methods for Assessment of Fish Production in Fresh Waters. Londres: International Biological Programme, 1968.

MLA (9th ed.) Citation

Ricker, W. E. Methods for Assessment of Fish Production in Fresh Waters. International Biological Programme, 1968.