TY  - RPRT
TI  - Summary of ground-water hydrological data in Michigan in 1968
AU  - P.R. Giroux
AU  - G.C. Huffman
PY  - 1970
DO  - 10.3133/ofr70135
UR  - https://pubs.usgs.gov/publication/ofr70135
ID  - ofr70135
ER  -