Marshfield Clinic. (2002). Clinical medicine & research. Marshfield Clinic.
Cita Chicago Style (17a ed.)Marshfield Clinic. Clinical Medicine & Research. Marshfield, WI: Marshfield Clinic, 2002.
Cita MLA (8a ed.)Marshfield Clinic. Clinical Medicine & Research. Marshfield Clinic, 2002.
Precaución: Estas citas no son 100% exactas.