TY  - RPRT
TI  - Methods for collection and analysis of aquatic biological and microbiological samples
AU  - L. J. Britton
AU  - P. E. Greeson
PY  - 1988
DO  - 10.3133/ofr88190
UR  - https://pubs.usgs.gov/publication/ofr88190
ID  - ofr88190
ER  -