Cita APA (7a ed.)

Székely, A., & Helvey, E. (1973). A brief history of Hungary. Corvina.

Cita Chicago Style (17a ed.)

Székely, András, y Elek Helvey. A Brief History of Hungary. [Budapest]: Corvina, 1973.

Cita MLA (9a ed.)

Székely, András, y Elek Helvey. A Brief History of Hungary. Corvina, 1973.