APA (7th ed.) Citation

Happold, F. C. (1928). The Approach to history. Christophers.

Chicago Style (17th ed.) Citation

Happold, F. C. The Approach to History. Lond.: Christophers, 1928.

MLA (8th ed.) Citation

Happold, F. C. The Approach to History. Christophers, 1928.

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