TY  - BOOK
AU  - Needham,James G.
AU  - Needham,Paul R.(Paul Robert),1902-1964
TI  - A guide to the study of fresh-water biology
SN  - 0816263108
PY  - 1962///
CY  - San Francisco
PB  - Holden-Day
KW  - Freshwater biology
KW  - Insects, Aquatic
ER  -