TY  - BOOK
AU  - Vollenweider, Richard A..
TI  - a manual Methods for Measuring Primary Production in aquatic Environments / 
SN  - 0 632 00531 9
U1  - G:55 
PY  - 1997///
CY  - London : 
PB  - blackwell Scientific Publications , 
KW  - Life Science <Primary production on aquatic environments>
ER  -