Cita APA (7a ed.)

Bernardus Silvestris, f. 1., & Wetherbee, W. (1973). The Cosmographia of Bernardus Silvestris. Columbia University Press.

Cita Chicago Style (17a ed.)

Bernardus Silvestris, fl. 1136., y Winthrop Wetherbee. The Cosmographia of Bernardus Silvestris. New York: Columbia University Press, 1973.

Cita MLA (9a ed.)

Bernardus Silvestris, fl. 1136., y Winthrop Wetherbee. The Cosmographia of Bernardus Silvestris. Columbia University Press, 1973.