60531
60521
Prescott, Gerald Webber
9981-
How to know the freshwater algae
Dubuque,Iowa
W.C. Brown Co.
]1970[
vii, 348 p.:ill
Pictured -key nature series
Bibliography: p. 22-24
]by[ G. W. Prescott
Identification ، Freshwater algae
QK
567
.
P7
1970
AU
TI
CL
CL
