LEADER 00000nam 2200205 a 4500 001 ora0000007118 003 UkHlHU 007 t 008 991026s1962 000 040 UkHlHU 100 1 Needham, James G. 245 12 A guide to the study of fresh-water biology. 250 5th.ed. 260 |bConstable,|c1962. 300 107p. 650 0 Freshwater biology. 650 0 Freshwater ecology. 700 1 Needham, Paul R. 936 UCS bib. record 946 260 lacks |a
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