TY  - RPRT
TI  - Bedrock geologic map of the Springfield 1 degree by 2 degrees Quadrangle, Missouri
AU  - M.A. Middendorf
AU  - Kenneth C. Thomson
AU  - G.L. Easson
AU  - H.S. Sumner
PY  - 1991
DO  - 10.3133/i2029
UR  - https://pubs.usgs.gov/publication/i2029
ID  - i2029
ER  -