Cita APA

O'Connor, R. J., Shrubb, M., & Watson, D. (1990). Farming and birds. New York: Cambridge University Press.

Citación estilo Chicago

O'Connor, Raymond J., Michael Shrubb, y Donald Watson. Farming and Birds. New York: Cambridge University Press, 1990.

Cita MLA

O'Connor, Raymond J., Michael Shrubb, y Donald Watson. Farming and Birds. New York: Cambridge University Press, 1990.