TY - RPRT TI - Spectrographic analyses of insoluble-residue samples, Joplin 1 degree x 2 degrees Quadrangle, Kansas and Missouri; drill hole Nos. 62, 63, and 64 AU - J. H. Bullock AU - H. A. Whitney PY - 1989 DO - 10.3133/ofr89537 UR - https://pubs.usgs.gov/publication/ofr89537 ID - ofr89537 ER -