Não informado. (1973). Cornell International agriculture bulletin. New York State College of Agriculture and Life Sciences.
Chicago (17e ed.) BronvermeldingNão informado. Cornell International Agriculture Bulletin. Ithaca, NY: New York State College of Agriculture and Life Sciences, 1973.
MLA (8e ed.) BronvermeldingNão informado. Cornell International Agriculture Bulletin. New York State College of Agriculture and Life Sciences, 1973.
Let op: Deze citaties zijn niet altijd 100% accuraat.