Cita APA (7th ed.)

Cartland, B. (1975). A duel of hearts. Hurst and Blackett.

Cita Chicago (17th ed.)

Cartland, Barbara. A Duel of Hearts. London: Hurst and Blackett, 1975.

Cita MLA (8th ed.)

Cartland, Barbara. A Duel of Hearts. Hurst and Blackett, 1975.