Cita APA

Besser, J. F., & Brady, D. J. (1986). Bird damage to ripening field corn increases in the United States from 1971 to 1981. Washington, D.C.: Fish and Wildlife Service.

Citación estilo Chicago

Besser, Jerome F., y Daniel J. Brady. Bird Damage to Ripening Field Corn Increases in the United States From 1971 to 1981. Washington, D.C.: Fish and Wildlife Service, 1986.

Cita MLA

Besser, Jerome F., y Daniel J. Brady. Bird Damage to Ripening Field Corn Increases in the United States From 1971 to 1981. Washington, D.C.: Fish and Wildlife Service, 1986.