Cita APA (7a ed.)

Caudwell, C., & Thomson, G. (1965). The concept of freedom. Lawrence & Wishart.

Cita Chicago Style (17a ed.)

Caudwell, Christopher, y George Thomson. The Concept of Freedom. London: Lawrence & Wishart, 1965.

Cita MLA (9a ed.)

Caudwell, Christopher, y George Thomson. The Concept of Freedom. Lawrence & Wishart, 1965.