Παραπομπή APA

Brown, E. . E., & Gratzek, J. B. (1980). Fish farming hand book. AVI Publishing.

Παραπομπή Chicago Style

Brown, E Evan, και John B. Gratzek. Fish Farming Hand Book. Connecticut: AVI Publishing, 1980.

Παραπομπή MLA

Brown, E Evan, και John B. Gratzek. Fish Farming Hand Book. AVI Publishing, 1980.