TY  - BOOK
AU  - Prescott G. W.
TI  - How to Know the Freshwater Algae
SN  - 0697047547
AV  - QK 567 .P7 1978
PY  - 1978///
CY  - Boston
PB  - McGraw- Hill
KW  - Freshwater Algae-- Identification
ER  -