000 00299nam a2200133Ia 4500
008 160316s1970 xxu||||| |||| 00| 0 eng d
020 _a
100 _aRobert H. Whittaker
245 _aCommunities And Ecosystem
250 _a1st
260 _aLONDON
_bMACMILLAN
_c1970
300 _a158
700 _a
_a
999 _c919
_d919