Carlsen, C. (1977). The bull chief. Sphere.
Cita Chicago (17th ed.)Carlsen, Chris. The Bull Chief. London: Sphere, 1977.
Cita MLA (8th ed.)Carlsen, Chris. The Bull Chief. Sphere, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)