APA (7th ed.) Zitazioa
Gulland, J. (1969). Manual of methods for fish stock assessment. FAO of UNO.
Chicago Style (17th ed.) Zitazioa
Gulland, J.A. Manual of Methods for Fish Stock Assessment. Rome: FAO of UNO, 1969.
MLA (9th ed.) Zitazioa
Gulland, J.A. Manual of Methods for Fish Stock Assessment. FAO of UNO, 1969.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.