Cita APA (7th ed.)

Haddock, B. A. (1980). An introduction to historical thought. E. Arnold.

Cita Chicago (17th ed.)

Haddock, B. A. An Introduction to Historical Thought. London: E. Arnold, 1980.

Cita MLA (8th ed.)

Haddock, B. A. An Introduction to Historical Thought. E. Arnold, 1980.