Cita APA

MacGregor, E. A., & Greenwood, C. T. (1980). Plymers in nature. New York: J. Wiley.

Citación estilo Chicago

MacGregor, E. A., y Charles Trevor Greenwood. Plymers in Nature. New York: J. Wiley, 1980.

Cita MLA

MacGregor, E. A., y Charles Trevor Greenwood. Plymers in Nature. New York: J. Wiley, 1980.