Cita APA (7a ed.)

Whittington, H. B. (1985). The burgess shale. Yale University Press.

Cita Chicago Style (17a ed.)

Whittington, Harry B. The Burgess Shale. New Haven and London: Yale University Press, 1985.

Cita MLA (8a ed.)

Whittington, Harry B. The Burgess Shale. Yale University Press, 1985.