APA (7th ed.) Citation

DOWNS, J. F., & Bleibtreu, H. K. (1969). Human variation: An introduction to physical anthropology. Glencoe.

Chicago Style (17th ed.) Citation

DOWNS, James F., and Herman K. Bleibtreu. Human Variation: An Introduction to Physical Anthropology. California: Glencoe, 1969.

MLA (9th ed.) Citation

DOWNS, James F., and Herman K. Bleibtreu. Human Variation: An Introduction to Physical Anthropology. Glencoe, 1969.