APA

Werner A., Bijok J. & Riley N. (1965). Butterflies and moths. Nueva York: Viking Press.

Chicago

Werner Alfred, Bijok Josef and Riley Norman. 1965. Butterflies and moths. Nueva York: Viking Press.

Harvard

Werner A., Bijok J. and Riley N. (1965). Butterflies and moths. Nueva York: Viking Press.

MLA

Werner Alfred, Bijok Josef and Riley Norman. Butterflies and moths. Nueva York: Viking Press. 1965.