@misc{indiciaeca0d6f559a58, title = {Index of surface-water records, part 4, St. Lawrence River basin, to September 30, 1948}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1949}, doi = {10.3133/cir49}, url = {https://pubs.usgs.gov/publication/cir49}, note = {Source identifier: cir49} }