Cita APA (7a ed.)

McMillen, W. (1969). The green frontier: Plants in the service of man. Fawcett Publications.

Cita Chicago Style (17a ed.)

McMillen, Wheeler. The Green Frontier: Plants in the Service of Man. Greenwich: Fawcett Publications, 1969.

Cita MLA (9a ed.)

McMillen, Wheeler. The Green Frontier: Plants in the Service of Man. Fawcett Publications, 1969.