APA (7th ed.) Citation

Campbell, H. C., & Watson, J. K. (1980). The Oxford book of birds Bruce campbell. Oxford University Press.

Chicago Style (17th ed.) Citation

Campbell, H. C., and J. K. Watson. The Oxford Book of Birds Bruce Campbell. Oxford: Oxford University Press, 1980.

MLA (9th ed.) Citation

Campbell, H. C., and J. K. Watson. The Oxford Book of Birds Bruce Campbell. Oxford University Press, 1980.