Cita APA (7th ed.)

Crawford, H. E. W. (2004). Sumer and the Sumerians (2nd ed.). Cambridge University Press.

Cita Chicago (17th ed.)

Crawford, Harriet E. W. Sumer and the Sumerians. 2nd ed. Cambridge, UK ; New York: Cambridge University Press, 2004.

Cita MLA (8th ed.)

Crawford, Harriet E. W. Sumer and the Sumerians. 2nd ed. Cambridge University Press, 2004.