Cita APA (7a ed.)

Hall, R. L., & Sharp, H. S. (1978). Wolf and man: Evolution in parallel. Academic Press.

Cita Chicago Style (17a ed.)

Hall, Roberta L., y Henry S. Sharp. Wolf and Man: Evolution in Parallel. New York: Academic Press, 1978.

Cita MLA (8a ed.)

Hall, Roberta L., y Henry S. Sharp. Wolf and Man: Evolution in Parallel. Academic Press, 1978.