APA

Gonick L., Wheelis M., . (1991). The cartoon guide to genetics. New York: Harper Collins Publishers.

Chicago

Gonick Larry, Wheelis Mark, . 1991. The cartoon guide to genetics. New York: Harper Collins Publishers.

Harvard

Gonick L., Wheelis M., . (1991). The cartoon guide to genetics. New York: Harper Collins Publishers.

MLA

Gonick Larry, Wheelis Mark, . The cartoon guide to genetics. New York: Harper Collins Publishers. 1991.