000 00345 a2200133 4500
080 _a577.4
_bC588N
245 1 _aNatural ecosystems
_cby W.B. Clapham
260 _aNew York
_bMacmillan
_c1973
650 _aNatural Ecosystems
100 1 _aClapham, W.B.
300 _a243 p.
040 _aIARI, New Delhi
901 _a143198
999 _c70673
_d70673