Cita APA (7a ed.)

Weis, R. J. A. (2001). The yellow cross: The story of the last Cathars, 1290-1329. Penguin.

Cita Chicago Style (17a ed.)

Weis, René J. A. The Yellow Cross: The Story of the Last Cathars, 1290-1329. London: Penguin, 2001.

Cita MLA (9a ed.)

Weis, René J. A. The Yellow Cross: The Story of the Last Cathars, 1290-1329. Penguin, 2001.