The illustrated Origin of species

MLA

Darwin, Charles, and Richard E Leakey. The Illustrated Origin of Species. New York: Hill and Wang, 1979.

APA

Darwin, C., & Leakey, R. E. (1979). The illustrated Origin of species. New York: Hill and Wang.

Chicago

Darwin, Charles, and Richard E Leakey. The Illustrated Origin of Species. New York: Hill and Wang, 1979.