@misc{indiciae63aa38eea742, title = {Phytoplankton Abundance and Generic Composition Data for the Potomac River and Estuary, Maryland}, author = {R.R.H. Cohen and S.O. Pollock and V.E. Stoelzel and K.E. Boulukos}, year = {1985}, doi = {10.3133/ofr84859}, url = {https://pubs.usgs.gov/publication/ofr84859}, note = {Source identifier: ofr84859} }