TY  - BOOK
AU  - Needham,James G.
AU  - Needham,Paul R.
TI  - A guide to the study of fresh-water biology
AV  - QH96 .N4 1962
U1  - 591.929 
PY  - 1962///
CY  - San Francisco
PB  - Holden-Day
KW  - Freshwater organisms
KW  - Identification
KW  - North America
KW  - Collection and preservation
ER  -