APA (7 ম সংস্করণ) উদ্ধৃতি

Khan, H. (1990). Agricultural extension services in six selected villages of NWFP. Institute of Development Studies, N.W.F.P. Agricultural University.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Khan, Humayun. Agricultural Extension Services in Six Selected Villages of NWFP. Peshawar, Pakistan: Institute of Development Studies, N.W.F.P. Agricultural University, 1990.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Khan, Humayun. Agricultural Extension Services in Six Selected Villages of NWFP. Institute of Development Studies, N.W.F.P. Agricultural University, 1990.