TY - RPRT TI - Spectrographic analyses of insoluble-residue samples, Joplin 1 degree x 2 degrees Quadrangle, Kansas and Missouri; drill hole Nos. 53, 54 and 55 AU - J. H. Bullock AU - H. A. Whitney PY - 1989 DO - 10.3133/ofr89474 UR - https://pubs.usgs.gov/publication/ofr89474 ID - ofr89474 ER -