12 1 10 Muhammad Shafiq Additional Author Muhammad Sharif Additional Author Muhammad Azeem Additional Author Zulfiqar Ahmad Additional Author Longmire, J. Additional Author Hays,R.L, Summers,C and Seitz,W Additional Author mixed material Washington,D.C U.S. Department of the Interior 1981 Muhammad Sharif Additional Author Zulfiqar Ahmad Additional Author Odum,E.P Additional Author Muhammad Shafique Additional Author mixed material London W.B. Saunders Company 1971 M. Ramzan Akhtar Additional Author Zulfiqar Ahmad Additional Author Odum,E.P Additional Author Khaleel A. Tetlay Additional Author mixed material London W.B. Saunders Company 1971 Byerlee, D. Additional Author Munir Ahmad Additional Author Muhammad Azeem Additional Author Zulfiqar Ahmad Additional Author Odum,E.P Additional Author mixed material London W.B. Saunders Company 1971 12) Muhammad Sharif Additional Author Zulfiqar Ahmad Additional Author Longmire, J. Additional Author Muhammad Shafique Additional Author NFTA Additional Author mixed material Taiwan Council Of Agriculture, Executive Yuan 1991 Sheikh,M.I Additional Author Muhammad Sharif Additional Author Zulfiqar Ahmad Additional Author Longmire, J. Additional Author Khaleel A. Tetlay Additional Author mixed material Peshawar Pakistan forest Institute 1982 Khan,A.H Additional Author Heisey, P.W. Additional Author Zulfiqar Ahmad Additional Author Khaleel A. Tetlay Additional Author mixed material Pakistan Government of Pakistan Press, Karachi. 1958 Zulfiqar Ahmad Additional Author Khallel, A. Additional Author Mani,M.S Additional Author mixed material Netherland Dr.W.Junk B.V.,Publishers, The Hague 1974 Dryland Ecology in Social Perspective Muhammad Sharif Additional Author Zulfiqar Ahmad Additional Author Muhammad Shafique Additional Author Spooner,B and Mann,H.S Additional Author Asim Maqbool Additional Author mixed material London Academic Press 1982 Muhammad Sharif Additional Author Zulfiqar Ahmad Additional Author Khaleel A. Tetlay Additional Author M. Anwar Zafar Additional Author Stevens, E. John Additional Author Anees A. Qureshi Additional Author M. Shafique Bajwa Additional Author Harriss,C.L Additional Author mixed material Boston Allyn and Bacon, Inc 1967