Παραπομπή APA

Cowx, I. . G. (1991). Catch effort: Sampling strategies : applications in fresh water fisheries management. Fishing News Books.

Παραπομπή Chicago Style

Cowx, I G. Catch Effort: Sampling Strategies : Applications in Fresh Water Fisheries Management. England: Fishing News Books, 1991.

Παραπομπή MLA

Cowx, I G. Catch Effort: Sampling Strategies : Applications in Fresh Water Fisheries Management. Fishing News Books, 1991.