Não informado. (1939). Louisiana Rural Economist. Louisiana State University, Agricultural and Mechanical College.
Chicago-referens (17:e uppl.)Não informado. Louisiana Rural Economist. Baton Rouge, La: Louisiana State University, Agricultural and Mechanical College, 1939.
MLA-referens (8:e uppl.)Não informado. Louisiana Rural Economist. Louisiana State University, Agricultural and Mechanical College, 1939.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.