@misc{indiciae3187434f3640, title = {Hydrology and water resources of tributary basins to the Merrimack River from Salmon Brook to the Concord River, Massachusetts}, author = {Richard A. Brackley and Bruce P. Hansen}, year = {1983}, doi = {10.3133/ofr82441}, url = {https://pubs.usgs.gov/publication/ofr82441}, note = {Source identifier: ofr82441} }