TY  - BOOK
AU  - Joze Stirn
TI  - Manual of Methods in Aquatic Environment Research Part 8-Ecological Assessment of Pollution Effects
T2  - FAO Fisheries Technical Paper No
SN  - 925101115x
U1  - 639.2 
PY  - 1981///
CY  - Rome
PB  - FAO of the United Nations
ER  -