22 1 10 Ferree,M.J and Hagar,R.K Additional Author mixed material New York State University Of New York College Of Forestry. 1948 Anon Additional Author Sher Mehmood Shah Additional Author mixed material London Her Majesty\'s Stationery office 1953 Gans, J. Additional Author Brough,J.C.S Additional Author mixed material London Evans Brothers Limited 1947 Armitage,F.B Additional Author Watto, S.M.AA.K. Additional Author mixed material Pakistan Government of Pakistan 1983 Huke, R.E. Additional Author Huke, E.H. Additional Author Wackerman,A.E Additional Author mixed material New York McGraw- Hill Book Company, Inc. 1949 Wackerman,A.E Additional Author Mew, T.W. Additional Author Misra, J.K. Additional Author mixed material New York McGraw- Hill Book Company, Inc. 1949 Plucknett, D.L. Additional Author Smith, N.H. Additional Author Williams, J.T. and Anishetty, N.M. Additional Author Wackerman,A.E, Hagenstein,W.D and Michell,A.S Additional Author mixed material New York McGraw- Hill Book Company, Inc. 1949 Wackerman,A.E, Hagenstein,W.D and Michell,A.S Additional Author mixed material New York McGraw- Hill Book Company, Inc. 1966 Wackerman,A.E, Hagenstein,W.D and Michell,A.S Additional Author mixed material New York McGraw- Hill Book Company, Inc. 1966 Mikkelsen, D.S. Additional Author Wackerman,A.E Additional Author Wang, C.H. Additional Author Liem, T.H. Additional Author mixed material New York McGraw- Hill Book Company, Inc. 1949