Gaya APA

Norton, G, J. (1982). Gastrointestinal Disorder A Pathophysiologic Approach (Edisi 2nd.ed.). London: Medical Publisher.

Gaya MLA

Norton, Greenbergeg, J.. "Gastrointestinal Disorder A Pathophysiologic Approach". Edisi 2nd.ed. London: Medical Publisher, 1982. Text.