Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Liberman, S. (1980). Of clay pebbles, hollow clay balls, and writing. A Sumerian view.

Chicago Citation Edition Citation

Liberman, S.J. Of Clay Pebbles, Hollow Clay Balls, and Writing. A Sumerian View. 1980.

MLA Citation Edition Citation

Liberman, S.J. Of Clay Pebbles, Hollow Clay Balls, and Writing. A Sumerian View. 1980.