TY  - BOOK
AU  - Vollenweider,Richard A., x
AU  - x
TI  - A Manual on methods for measuring primary production in aquatic environments: x
SN  - x
U1  - 574.5263/MAN 
PY  - 1974///
CY  - Lond
PB  - Balackwell,Scientific.
KW  - Marime Ecology
KW  - Merime Ecology
ER  -