TY  - BOOK
T1  - A guide to the study of fresh-water biology
DA  - 1962.
CY  - San Francisco,
AU  - Needham, James G.
AU  - Needham, Paul R.
ET  - 5th ed., rev. and enl.
CN  - QH96
CN  - QH96
PB  - Holden-Day,
PP  - San Francisco,
PY  - 1962.
ID  - 55785
KW  - Freshwater biology.
KW  - Aquatic insects.
TI  - A guide to the study of fresh-water biology
ER  -