SNDBROSBNMUS, Legacy reference. Physical copy not yet located.

NatureServe. Unpublished. Concept reference for taxa which have not yet been described; to be used as a placeholder until a citation is available which describes the circumscription of the taxon.

MNDHER01NMUS, Legacy reference. Physical copy not yet located.

Unknown. 19??. Survey of the blacktail prairie dog (Cynomys ludovicianus) in southern New Mexico to determine the current population and distribution of the subspecies Cynomys ludovicianus arizonensis.

Davis, S. K., D. C. Duncan, D. A. Anstey, and M. Skeel. in press. Habitat selection of grassland songbirds in southern Saskatchewan. Wilson Bulletin.

Bolander, R. Biologist, U.S. Bureau of Land Management, Salt Lake City, Utah. Personal communication.

Long, Glen A.

Taylor, C. M. The University of Oklahoma, Department of Zoology, Norman, OK. Pers. comm.

Hafner, D.J. New Mexico Museum of Natural History. Albuquerque, NM. Phone: (505)841-8837.

Osborne, C. Data Mgr./Env. Review. Arkansas Natural Heritage Commission. Little Rock, AR

Hevron, B.E. Botanist, Navajo Natural Heritage Program.

McGuffin, Michael. Personal communication. American Herbal Products Association, Silver Spring MD

Wieland, Ronald. Mississippi Natural Heritage Program. Personal communication.

Fenton, M.B., D.C. Tennant, and J. Wyszecki. No date. Survey Report.

Fayette, Kim. Botanist, Colorado Natural Heritage Program.

Klein, Robyn. Instructor, Sweetgrass School of Herbalism. Personal communication.

Unknown Author. No Date. Cottonwood Cave, New Mexico.