Cita APA (7a ed.)

Heywood, W. (1921). A history of Pisa, eleventh and twelfth centuries. Cambridge University Press.

Cita Chicago Style (17a ed.)

Heywood, William. A History of Pisa, Eleventh and Twelfth Centuries. Cambridge: Cambridge University Press, 1921.

Cita MLA (9a ed.)

Heywood, William. A History of Pisa, Eleventh and Twelfth Centuries. Cambridge University Press, 1921.