Ricker, W. E. (1968). Methods for assessment of fish production in fresh waters. Published for the International Biological Programme by Blackwell Scientific.
Cita Chicago (17th ed.)Ricker, William Edwin. Methods for Assessment of Fish Production in Fresh Waters. Oxford: Published for the International Biological Programme by Blackwell Scientific, 1968.
Cita MLA (9th ed.)Ricker, William Edwin. Methods for Assessment of Fish Production in Fresh Waters. Published for the International Biological Programme by Blackwell Scientific, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.