APA

Emsley M., . (1964). Geographical distribution of the color - pattern components of Heliconius erato and Heliconius melpomene with genetical evidence for the systematic relationship between the two species. New York: s.n.

Chicago

Emsley Michael, . 1964. Geographical distribution of the color - pattern components of Heliconius erato and Heliconius melpomene with genetical evidence for the systematic relationship between the two species. New York: s.n.

Harvard

Emsley M., . (1964). Geographical distribution of the color - pattern components of Heliconius erato and Heliconius melpomene with genetical evidence for the systematic relationship between the two species. New York: s.n.

MLA

Emsley Michael, . Geographical distribution of the color - pattern components of Heliconius erato and Heliconius melpomene with genetical evidence for the systematic relationship between the two species. New York: s.n. 1964.