TY  - BOOK
AU  - Needham,James G.
AU  - Needham,Paul R.
TI  - A guide to the study of fresh-water biology
SN  - 0816263108
U1  - 595.7 23
PY  - 1962///[reprinted 1975]
CY  - San Francisco
PB  - Holden-Day
KW  - Freshwater insects
KW  - Freshwater biology
ER  -