Não informado. (1963). Agri marketing. Century Communications.
Chicago (17e ed.) BronvermeldingNão informado. Agri Marketing. Skokie, Ill: Century Communications, 1963.
MLA (8e ed.) BronvermeldingNão informado. Agri Marketing. Century Communications, 1963.
Let op: Deze citaties zijn niet altijd 100% accuraat.