TY - RPRT TI - Geology and ground-water resources of Washington, D.C., and vicinity, with a section on chemical quality of the water AU - Paul McKelvey Johnston AU - D. E. Weaver AU - Leonard Siu PY - 1964 DO - 10.3133/wsp1776 UR - https://pubs.usgs.gov/publication/wsp1776 ID - wsp1776 ER -