Texas. Parks and Wildlife Department. Desert Bighorn Sheep Advisory Committee & Cook, R. L. (1994). A historical review of reports, field notes, and correspondence on the desert bighorn sheep in Texas (Rev. June 1994.). Texas Parks & Wildlife.
Chicago Style (17th ed.) CitationTexas. Parks and Wildlife Department. Desert Bighorn Sheep Advisory Committee and Robert L. Cook. A Historical Review of Reports, Field Notes, and Correspondence on the Desert Bighorn Sheep in Texas. Rev. June 1994. Austin, Tex.: Texas Parks & Wildlife, 1994.
MLA (9th ed.) CitationTexas. Parks and Wildlife Department. Desert Bighorn Sheep Advisory Committee and Robert L. Cook. A Historical Review of Reports, Field Notes, and Correspondence on the Desert Bighorn Sheep in Texas. Rev. June 1994. Texas Parks & Wildlife, 1994.