Gaya APA

Zollinger, R., Ellison, E, C. (2011). Zollinger's atlas of surgical operations (9th ed.). New York: McGaw-Hill Medical.

Gaya MLA

Zollinger, Robert., Ellison, E., Christopher. "Zollinger's atlas of surgical operations". 9th ed. New York: McGaw-Hill Medical, 2011. Text.