1981
Worthington, R. D. 1981. Locations of two populations of Sneed's cactus in the Anthony Gap area. University of Texas. Department of Biological Sciences. El Paso, Texas 79968. 6 pages.
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Franklin Mountains
Worthington, R. D. 1981. Locations of two populations of Sneed's cactus in the Anthony Gap area. University of Texas. Department of Biological Sciences. El Paso, Texas 79968. 6 pages.
Van Devender, R., and R. Rondeau. 1992. The status of Sneed's pincushion cactus (Coryphantha sneedii var. sneedii) in Texas. Southwestern Field Biologists. Tuscon, Arizona. 20 p.
Mehlhop, P., E. Muldavin, T. Bennett, S. Wood, S. Yanoff, N. Douglas, and S. Radjy. 1996. Vegetation of Fort Bliss Texas and New Mexico. Final report volume II: vegetation map. Natural Heritage New Mexico Publ. No. 96-GTR-99. 32 p. + app.
Birnbaum, S. J. 2001. Sneed's pincushion cactus (Escobaria sneedii var. sneedii) localities in New Mexico. Texas Parks and Wildlife. Austin, Texas. 2 pages.
Zimmerman, A.D. 1985. Systematics of the genus Coryphantha (Cactaceae). Austin, TX: University of Texas. Dissertation.