TY  - RPRT
TI  - Spectrographic analyses of insoluble-residue samples, Joplin 1 degree x 2 degrees quadrangle, Kansas and Missouri : drill hole nos. 19, 20, and 21
AU  - John H. Bullock
AU  - Helen A. Whitney
PY  - 1989
DO  - 10.3133/ofr89276
UR  - https://pubs.usgs.gov/publication/ofr89276
ID  - ofr89276
ER  -