TY - RPRT TI - A comparison of populations of the desert tortoise (Gopherus agassizii) in grazed and ungrazed areas in Ivanpah Valley, California AU - F.B. Turner AU - P.A. Medica AU - C.L. Lyons PY - 1980 UR - https://pubs.usgs.gov/publication/96322 ID - 96322 ER -