000
00303nam a2200121Ia 4500
008
191031s9999 xx 000 0 und d
100
_a
James G.Needham
245
2
_a
A guide to the study of fresh water biology
260
_b
Constable and company
260
_c
1962
365
_b
22.50
942
_c
BK
999
_c
197896
_d
197896