Παραπομπή APA

FAO. (1980). Echo sounding and sonar for fishing. Fishing News Books.

Παραπομπή Chicago Style

FAO. Echo Sounding and Sonar for Fishing. England: Fishing News Books, 1980.

Παραπομπή MLA

FAO. Echo Sounding and Sonar for Fishing. Fishing News Books, 1980.