@misc{indiciaebe38bb9ecd05, title = {Sea floor topography of Quadrangle 9 in the Stellwagen Bank National Marine Sanctuary off Boston, Massachusetts}, author = {P. C. Valentine and J. L. Baker and T. S. Unger and E. T. Roworth}, year = {1997}, doi = {10.3133/ofr97682}, url = {https://pubs.usgs.gov/publication/ofr97682}, note = {Source identifier: ofr97682} }