TY  - RPRT
TI  - Spectrographic analyses of insoluble-residue samples, Harrison 1 degree by 2 degrees Quadrangle, Missouri and Arkansas; drill holes nos. 21, 23, and 24
AU  - M. S. Erickson
AU  - Barbara Chazin
PY  - 1987
DO  - 10.3133/ofr87519
UR  - https://pubs.usgs.gov/publication/ofr87519
ID  - ofr87519
ER  -