TY  - BOOK
AU  - Vollenweider, Richard A. ed.
TI  -  A Manual on methods for Measuring Primary production in Aqutic Envioronments: IBP Hand Book -12 
SN  - 0632005319
U1  - 574.5 
PY  - 1969///,
CY  - London
PB  - Blackwell Scientific Publications
KW  - Primary Production
KW  - Aquatic Envioronments
ER  -