Dyfyniad APA

Ricker, W. E. (1971). Methods for assessment of fish production in fresh waters (2nd ed.). Blackwell Scientific Publications [for] International Biological Programme.

Dyfyniad Arddull Chicago

Ricker, William Edwin. Methods for Assessment of Fish Production in Fresh Waters. 2nd ed. Oxford: Blackwell Scientific Publications [for] International Biological Programme, 1971.

Dyfyniad MLA

Ricker, William Edwin. Methods for Assessment of Fish Production in Fresh Waters. 2nd ed. Blackwell Scientific Publications [for] International Biological Programme, 1971.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.