Schmidt, D. F., & Carleton, M. D. L. The Smithsonian Institution African Mammal Project (1961-1972): An annotated gazetteer of collecting localities and summary of its taxonomic and geographic scope / David F. Schmidt, Craig A. Ludwig, and Michael D. Carleton. Washington, D.C. : Smithsonian Institution Scholarly Press.

Schmidt, David F., and Michael D. Ludwig Carleton. The Smithsonian Institution African Mammal Project (1961-1972): An Annotated Gazetteer of Collecting Localities and Summary of Its Taxonomic and Geographic Scope / David F. Schmidt, Craig A. Ludwig, and Michael D. Carleton. Washington, D.C. : Smithsonian Institution Scholarly Press.

Schmidt, David F., and Michael D. Ludwig Carleton. The Smithsonian Institution African Mammal Project (1961-1972): An Annotated Gazetteer of Collecting Localities and Summary of Its Taxonomic and Geographic Scope / David F. Schmidt, Craig A. Ludwig, and Michael D. Carleton. Washington, D.C. : Smithsonian Institution Scholarly Press.