Cita APA (7th ed.)

Thrupp, S. L. (1967). Early medieval society. Appleton-Century-Crofts.

Cita Chicago (17th ed.)

Thrupp, Sylvia Lettice. Early Medieval Society. New York: Appleton-Century-Crofts, 1967.

Cita MLA (9th ed.)

Thrupp, Sylvia Lettice. Early Medieval Society. Appleton-Century-Crofts, 1967.