Cita APA (7a ed.)

Abulafia, D. (1977). The two Italies: Economic relations between the Norman kingdom of Sicily and the northern communes. Cambridge University Press.

Cita Chicago Style (17a ed.)

Abulafia, David. The Two Italies: Economic Relations Between the Norman Kingdom of Sicily and the Northern Communes. Cambridge ; New York: Cambridge University Press, 1977.

Cita MLA (9a ed.)

Abulafia, David. The Two Italies: Economic Relations Between the Norman Kingdom of Sicily and the Northern Communes. Cambridge University Press, 1977.