APA (7th ed.) Citation

Harper Collins, Fitter, R., Heinzel, H., & Parslow, J. (1995). Birds of Britain and Europe with North Africa and Middle East. Harper Collins.

Chicago Style (17th ed.) Citation

Harper Collins, Richard Fitter, Hermann Heinzel, and John Parslow. Birds of Britain and Europe with North Africa and Middle East. London: Harper Collins, 1995.

MLA (8th ed.) Citation

Harper Collins, et al. Birds of Britain and Europe with North Africa and Middle East. Harper Collins, 1995.