@misc{indiciae5a661fb6f58e, title = {Ground-water resources of the United States Naval Base, Philadelphia, Pennsylvania}, author = {J.C. Kammerer and J.B. Graham}, year = {1952}, doi = {10.3133/ofr5286}, url = {https://pubs.usgs.gov/publication/ofr5286}, note = {Source identifier: ofr5286} }