APA (7 ম সংস্করণ) উদ্ধৃতি

Bradfield, D. J. (1966). Guide to extension training. Food and Agriculture Organization of the United Nations.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Bradfield, D. J. Guide to Extension Training. Rome: Food and Agriculture Organization of the United Nations, 1966.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Bradfield, D. J. Guide to Extension Training. Food and Agriculture Organization of the United Nations, 1966.