APA (7th ed.) Citation

Levick, G. M. (1914). Antarctic penguins: A study of their social habits. Heinemann.

Chicago Style (17th ed.) Citation

Levick, George M. Antarctic Penguins: A Study of Their Social Habits. London: Heinemann, 1914.

MLA (9th ed.) Citation

Levick, George M. Antarctic Penguins: A Study of Their Social Habits. Heinemann, 1914.

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