Cita APA (7a ed.)

Gies, F., & Gies, J. (1990). Life in a medieval village. Harper & Row.

Cita Chicago Style (17a ed.)

Gies, Frances, y Joseph Gies. Life in a Medieval Village. New York: Harper & Row, 1990.

Cita MLA (9a ed.)

Gies, Frances, y Joseph Gies. Life in a Medieval Village. Harper & Row, 1990.