TY  - BOOK
AU  - Edmondson, W. T.
AU  - Winberg, G. G. 
TI  - A Manual on methods for the assessment of secondary productivity in fresh waters
SN  - 0632064307
AV  - QH96.57.P75 M36 1984
U1  - 591.929 
PY  - 1971///
CY  - Boston, London
PB  - Blackwell Scientific Publications, International biological programme
KW  - Freshwater productivity
KW  - Measurement
N1  - Includes bibliographical references and index
ER  -