TY  - RPRT
TI  - Spectrographic analyses of insoluble-residue samples, Joplin 1 degree x 2 degrees Quadrangle, Kansas and Missouri; drill hole Nos. 75, 76, 77, 78, and 79
AU  - J. H. Bullock
AU  - H. W. Folger
PY  - 1989
DO  - 10.3133/ofr89657
UR  - https://pubs.usgs.gov/publication/ofr89657
ID  - ofr89657
ER  -