000 00360nam a2200145Ia 4500
008 180710s9999 xx 000 0 und d
020 _a245834
082 _a591.5
_bVER
100 _aVerma, P.S.
245 _aPrinciples of ecology (environmental biology)
250 _a2nd ed.
260 _aNew Delhi
_bS.Chand
_c1985
300 _aviii, 591 p.
942 _cS
999 _c75440
_d75440