Normann Geoffery,R. (2008). Biostatistics (3rd ed.). B.C.Decker.
Cita Chicago (17th ed.)Normann Geoffery,R. Biostatistics. 3rd ed. Hamilton: B.C.Decker, 2008.
Cita MLA (9th ed.)Normann Geoffery,R. Biostatistics. 3rd ed. B.C.Decker, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.