Gaya APA

Pfeiffer, C, J. (1979). Gastric Cancer: Etiology and Pathogenesis . New York: Gerhard Witzstrock Publishing House.

Gaya MLA

Pfeiffer, Carl, J.. "Gastric Cancer: Etiology and Pathogenesis". New York: Gerhard Witzstrock Publishing House, 1979. Teks.