Horsley, J. W. Our British Snails.
Chicago Style (17th ed.) ZitazioaHorsley, J. W. Our British Snails.
MLA (9th ed.) ZitazioaHorsley, J. W. Our British Snails.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA (7th ed.) Zitazioa