Cita APA (7a ed.)

McMillen, W. (1969). The Green frontier. Fawcett Publications.

Cita Chicago Style (17a ed.)

McMillen, Wheeler. The Green Frontier. Greenwich: Fawcett Publications, 1969.

Cita MLA (9a ed.)

McMillen, Wheeler. The Green Frontier. Fawcett Publications, 1969.