Cita APA (7th ed.)

Haskins, C. H. (1955). The Renaissance of the twelfth century. World Pub.

Cita Chicago (17th ed.)

Haskins, Charles Homer. The Renaissance of the Twelfth Century. Cleveland: World Pub, 1955.

Cita MLA (9th ed.)

Haskins, Charles Homer. The Renaissance of the Twelfth Century. World Pub, 1955.