TY - RPRT TI - Geology of the Sierra Madera cryptoexplosion structure, Pecos County, Texas AU - H. G. Wilshire AU - Terry W. Offield AU - K. A. Howard AU - David Cummings PY - 1972 DO - 10.3133/pp599h UR - https://pubs.usgs.gov/publication/pp599H ID - pp599H ER -