Zettler, R. L., & Ellis, M. D. J. (1992). Excavations at Nippur, The University of Pennsylvania, and the University's Museum. Nippur at the centennial, 325-336.
Citazione stile Chigago Style (17a edizione)Zettler, Richard L., e Maria De J. Ellis. "Excavations at Nippur, The University of Pennsylvania, and the University's Museum." Nippur at the Centennial 1992: 325-336.
Citatione MLA (8a ed.)Zettler, Richard L., e Maria De J. Ellis. "Excavations at Nippur, The University of Pennsylvania, and the University's Museum." Nippur at the Centennial, 1992, pp. 325-336.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.