Cita APA (7th ed.)
Silman, A. J., & Macfarlane, G. J. (2002). Epidemiological studies: A practical guide (2nd ed.). Cambridge University Press.
Cita Chicago (17th ed.)
Silman, Alan J., i Gary J. Macfarlane. Epidemiological Studies: A Practical Guide. 2nd ed. Cambridge ; New York: Cambridge University Press, 2002.
Cita MLA (9th ed.)
Silman, Alan J., i Gary J. Macfarlane. Epidemiological Studies: A Practical Guide. 2nd ed. Cambridge University Press, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.