TY  - BOOK
AU  - Schwoerbel,Jürgen
TI  - Methods of hydrobiology (freshwater biology)
SN  - 0080066046
AV  - QH96 .S313 1970
U1  - 574.929 
PY  - 1970///]
CY  - Oxford, [New York]
PB  - Pergamon Press
KW  - Freshwater biology
KW  - Research
KW  - Biological apparatus and supplies
N1  - Includes bibliographical references
ER  -