Khan, H. (1990). Agricultural extension services in six selected villages of NWFP. Institute of Development Studies, N.W.F.P. Agricultural University.
Style de citation Chicago (17e éd.)Khan, Humayun. Agricultural Extension Services in Six Selected Villages of NWFP. Peshawar, Pakistan: Institute of Development Studies, N.W.F.P. Agricultural University, 1990.
Style de citation MLA (8e éd.)Khan, Humayun. Agricultural Extension Services in Six Selected Villages of NWFP. Institute of Development Studies, N.W.F.P. Agricultural University, 1990.
Attention : ces citations peuvent ne pas être correctes à 100%.