00536nam a2200205   450000500170000000600040001700700040002100800040002502000150002904000090004405000220005310000240007524500460009925000120014526000550015730000180021244000410023050000280027165000310029920260323122301.0000000000  a0117102563  aUOEL  aSD396.5b.R6 1985  aRollinson, T. J. D.  aThinning Control /cby T. J. D. Rollinson  a3rd ed.  aLondon :bHer Majesty's Stationery Office,cc1985.  a56 p. :bill.  aForestry commissiion Field :nBook 2  aIncludes bibliographies  aThinning ControlxForestry