APA (7th ed.) Citation

Hudson, R. (1975). Threatened birds of Europe. MacMillan.

Chicago Style (17th ed.) Citation

Hudson, Robert. Threatened Birds of Europe. London: MacMillan, 1975.

MLA (9th ed.) Citation

Hudson, Robert. Threatened Birds of Europe. MacMillan, 1975.

Warning: These citations may not always be 100% accurate.