TY  - GEN
AU  - 
TI  - Methods and Measurements of Periphyton Communities: A Review
U1  - 579.176 
PY  - 1979///
CY  - Philadelphia
PB  - American Society for Testing and Materials
KW  - Periphytons
KW  - Diatoms
KW  - Algae
KW  - Biomass
ER  -