Cita APA

Levetin, E., & McMahon, K. (1999). Plants and society (2nd ed.). WCB/McGraw-Hill.

Citación estilo Chicago

Levetin, Estelle, and Karen McMahon. Plants and Society. 2nd ed. Boston: WCB/McGraw-Hill, 1999.

Cita MLA

Levetin, Estelle, and Karen McMahon. Plants and Society. 2nd ed. WCB/McGraw-Hill, 1999.