APA (7th ed.) Citation

Ratcliffe, D. A., & Rose, C. (1991). Bird life of mountain and upland. Cambridge University Press.

Chicago Style (17th ed.) Citation

Ratcliffe, Derek A., and Chris Rose. Bird Life of Mountain and Upland. Cambridge: Cambridge University Press, 1991.

MLA (8th ed.) Citation

Ratcliffe, Derek A., and Chris Rose. Bird Life of Mountain and Upland. Cambridge University Press, 1991.