TY - RPRT TI - Geochemical survey Of Missouri; plans and progress for first six-month period (July-December 1969) AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1969 DO - 10.3133/ofr72398 UR - https://pubs.usgs.gov/publication/ofr72398 ID - ofr72398 ER -