Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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