000 00312nam a2200133Ia 4500
008 160316s1985 xxu||||| |||| 00| 0 eng d
020 _a9061935059
100 _aD. O. Hall
245 _aEconomics Of Ecostem Mang.
250 _a1st
260 _aBOSTON
_bDR. W. JUNK PUB.
_c1985
300 _a244
700 _a
_a
999 _c38619
_d38619