APA aipamena

Porta, M. (2008). A dictonary of epidemiology (5th.). Oxford University.

Chicago Style aipamena

Porta, Miquel. A Dictonary of Epidemiology. 5th. New York: Oxford University, 2008.

MLA aipamena

Porta, Miquel. A Dictonary of Epidemiology. 5th. Oxford University, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.