APA

Sheppard P. M., Turner J. R. G., Brown K. S., Benson W. W. & Singer M. C.Genetics and the evolution of muellerian mimicry in Heliconius butterflies. : .

Chicago

Sheppard P M, Turner John R G, Brown Keith S, Benson Woodruff W and Singer M C.Genetics and the evolution of muellerian mimicry in Heliconius butterflies. : .

Harvard

Sheppard P. M., Turner J. R. G., Brown K. S., Benson W. W. and Singer M. C.Genetics and the evolution of muellerian mimicry in Heliconius butterflies. : .

MLA

Sheppard P M, Turner John R G, Brown Keith S, Benson Woodruff W and Singer M C.: . .