Cita APA (7a ed.)

Sugar, P. F., Hanak, P., & Frank, T. (1990). A history of Hungary. Tauris.

Cita Chicago Style (17a ed.)

Sugar, Peter F., Peter Hanak, y Tibor Frank. A History of Hungary. London [etc.]: Tauris, 1990.

Cita MLA (9a ed.)

Sugar, Peter F., et al. A History of Hungary. Tauris, 1990.