APA استشهاد

Ricker, W. . E. (1971). Methods for assessment of fish production in fresh waters/2nd ed (2nd ed.). Oxford.

استشهاد بنمط شيكاغو

Ricker, W E. Methods for Assessment of Fish Production in Fresh Waters/2nd Ed. 2nd ed. Edinburgh: Oxford, 1971.

MLA استشهاد

Ricker, W E. Methods for Assessment of Fish Production in Fresh Waters/2nd Ed. 2nd ed. Oxford, 1971.