Cita APA

Sommer, A., & West, K. P. (1996). Vitamin A deficiency: Health, survival, and vision. Oxford University Press.

Citación estilo Chicago

Sommer, Alfred, and Keith P. West. Vitamin A Deficiency: Health, Survival, and Vision. New York: Oxford University Press, 1996.

Cita MLA

Sommer, Alfred, and Keith P. West. Vitamin A Deficiency: Health, Survival, and Vision. Oxford University Press, 1996.