Cita APA (7a ed.)

Heen, E., & Kreuzer, R. (1962). Fish in nutrition. FAO.

Cita Chicago Style (17a ed.)

Heen, Eirik, y Rudolf Kreuzer. Fish in Nutrition. England: FAO, 1962.

Cita MLA (9a ed.)

Heen, Eirik, y Rudolf Kreuzer. Fish in Nutrition. FAO, 1962.