Παραπομπή APA

Karmer, S. N. (1971). The Sumerians: Their history, culture, and character. The University of Chicago Press.

Παραπομπή Chicago Style

Karmer, Samuel Noha. The Sumerians: Their History, Culture, and Character. Chicago: The University of Chicago Press, 1971.

Παραπομπή MLA

Karmer, Samuel Noha. The Sumerians: Their History, Culture, and Character. The University of Chicago Press, 1971.