Gaya APA

Edwards, C, R, W., Bouchier, I, A, D. (1991). Principles's and Practice Medicine (Sixteenth, ed.). : ELBS and Bailliere Tindall.

Gaya MLA

Edwards, Christopher, R., W.., Bouchier, Ian, A., D.. "Principles's and Practice Medicine". Sixteenth, ed. : ELBS and Bailliere Tindall, 1991. Text.