Não informado. (1939). Louisiana Rural Economist. Louisiana State University, Agricultural and Mechanical College.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Louisiana Rural Economist. Baton Rouge, La: Louisiana State University, Agricultural and Mechanical College, 1939.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Louisiana Rural Economist. Louisiana State University, Agricultural and Mechanical College, 1939.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.