Khan, H. (1990). Agricultural extension services in six selected villages of NWFP. Institute of Development Studies, N.W.F.P. Agricultural University.
Citace podle Chicago (17th ed.)Khan, Humayun. Agricultural Extension Services in Six Selected Villages of NWFP. Peshawar, Pakistan: Institute of Development Studies, N.W.F.P. Agricultural University, 1990.
Citace podle MLA (8th ed.)Khan, Humayun. Agricultural Extension Services in Six Selected Villages of NWFP. Institute of Development Studies, N.W.F.P. Agricultural University, 1990.
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