Hume, R., Tipling, D., Harrop, H., Swash, A., & Still, R. (2016). Britain's Birds: An Identification Guide to the Birds of Britain and Ireland. Princeton University Press.
Chicago Style (17th ed.) CitationHume, Rob, David Tipling, Hugh Harrop, Andy Swash, and Robert Still. Britain's Birds: An Identification Guide to the Birds of Britain and Ireland. Princeton, NJ: Princeton University Press, 2016.
MLA (8th ed.) CitationHume, Rob, et al. Britain's Birds: An Identification Guide to the Birds of Britain and Ireland. Princeton University Press, 2016.
Warning: These citations may not always be 100% accurate.