TY  - RPRT
TI  - Spectrographic analyses of insoluble-residue samples, Joplin 1 degree x 2 degrees Quadrangle, Kansas and Missouri; drill hole Nos. 65, 66 and 67
AU  - J. H. Bullock
AU  - H. W. Folger
PY  - 1990
DO  - 10.3133/ofr9022
UR  - https://pubs.usgs.gov/publication/ofr9022
ID  - ofr9022
ER  -