000 00553nam a2200205 4500
001 34307/81
005 20130515014438.0
008 111112s9999 xx 000 0 und d
020 _a0-13-3790866-7
020 _ahard cover
082 0 0 _a574. 526 32 and
100 1 _a"0, . "
245 1 0 _aa guide to the study of fresh water ecology:
_b/
_c ..
250 _a1 ed.
260 _ausa :
_bprentice-hall
_c1972.
300 _a"ix, 182p.;
_c24 cm."
490 0 _acontours:studies of the environment
504 _a
650 0 _afresh-water ecology
_x
999 _c20135
_d20135