Cita APA (7a ed.)

Hume, R., Tipling, D., Harrop, H., Swash, A., & Still, R. (2019). British Birds: A Pocket Guide. Princeton University Press.

Cita Chicago Style (17a ed.)

Hume, Rob, David Tipling, Hugh Harrop, Andy Swash, y Rob Still. British Birds: A Pocket Guide. Princeton, New Jersey: Princeton University Press, 2019.

Cita MLA (8a ed.)

Hume, Rob, et al. British Birds: A Pocket Guide. Princeton University Press, 2019.