Não informado. (1939). Louisiana Rural Economist. Louisiana State University, Agricultural and Mechanical College.
Chicago (17e ed.) BronvermeldingNão informado. Louisiana Rural Economist. Baton Rouge, La: Louisiana State University, Agricultural and Mechanical College, 1939.
MLA (8e ed.) BronvermeldingNão informado. Louisiana Rural Economist. Louisiana State University, Agricultural and Mechanical College, 1939.
Let op: Deze citaties zijn niet altijd 100% accuraat.