Não informado. (1939). Louisiana Rural Economist. Louisiana State University, Agricultural and Mechanical College.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Louisiana Rural Economist. Baton Rouge, La: Louisiana State University, Agricultural and Mechanical College, 1939.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Louisiana Rural Economist. Louisiana State University, Agricultural and Mechanical College, 1939.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.