APA (7th ed.) Citation

Irwin, H. T., Wheat, J. B., & Irwin, L. F. (1968). University of Colorado investigations of paleolithic and epipaleolithic sites in the Sudan, Africa. University of Utah Press.

Chicago Style (17th ed.) Citation

Irwin, Henry T., Joe Ben Wheat, and Lee F. Irwin. University of Colorado Investigations of Paleolithic and Epipaleolithic Sites in the Sudan, Africa. Salt Lake City: University of Utah Press, 1968.

MLA (9th ed.) Citation

Irwin, Henry T., et al. University of Colorado Investigations of Paleolithic and Epipaleolithic Sites in the Sudan, Africa. University of Utah Press, 1968.