APA (7th ed.) Citation

Harmer, S. F. (1913). The Cambridge natural history. Macmillan.

Chicago Style (17th ed.) Citation

Harmer, S. F. The Cambridge Natural History. London: Macmillan, 1913.

MLA (9th ed.) Citation

Harmer, S. F. The Cambridge Natural History. Macmillan, 1913.

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