Gaya APA

Kleinbaum, D, G., Kupper, L, L. (1982). Epidemiologic Research: principles and quantitative methods . America: Wadsworth.

Gaya MLA

Kleinbaum, David, G.., Kupper, Lawrennce, L.. "Epidemiologic Research: principles and quantitative methods". America: Wadsworth, 1982. Text.