Cita APA (7a ed.)

Ganshof, F. L. (1961). Feudalism (2d English ed.). Harper.

Cita Chicago Style (17a ed.)

Ganshof, F. L. Feudalism. 2d English ed. New York: Harper, 1961.

Cita MLA (8a ed.)

Ganshof, F. L. Feudalism. 2d English ed. Harper, 1961.