TY  - BOOK
AU  - Henry Baldwin,
AU  - Whipple, George Chandler,
TI  - Fresh-water biology
U1  - 574.929 WAR 
PY  - 1918///.,1945
CY  - New York
PB  - John Wiley and sons, inc.
KW  - Freshwater biology
N1  - Includes bibliographical references
ER  -