Não informado. (1971). Journal of Agricultural Research. Government of the Punjab, Department of Agriculture.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Journal of Agricultural Research. Lahore, Paquistao: Government of the Punjab, Department of Agriculture, 1971.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Journal of Agricultural Research. Government of the Punjab, Department of Agriculture, 1971.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.