000			00316nam a2200133Ia 4500
008			160316s1981 xxu||||| |||| 00| 0 eng d
020			_a0408107383
100			_aC.C Park
245			_aEcology And Environmental Management
250			_a1st
260			_aLONDON _bBUTTER WORTHS _c1981
300			_a272
700			_a _a
999			_c31327 _d31327