Não informado. (1948). Speculum. Ohio State University, College of Veterinary Medicine.
Chicago (17e ed.) BronvermeldingNão informado. Speculum. Columbus, Ohio: Ohio State University, College of Veterinary Medicine, 1948.
MLA (8e ed.) BronvermeldingNão informado. Speculum. Ohio State University, College of Veterinary Medicine, 1948.
Let op: Deze citaties zijn niet altijd 100% accuraat.