Não informado. (1952). Canadian Journal of Agricultural Economics. Canadian Agricultural Economics and Farm Management Society.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Canadian Journal of Agricultural Economics. Winnipeg, Canada: Canadian Agricultural Economics and Farm Management Society, 1952.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Canadian Journal of Agricultural Economics. Canadian Agricultural Economics and Farm Management Society, 1952.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.