(2004). American Family Physician. Kansas: American academy of Family Physicians.
Citação norma ChicagoAmerican Family Physician. Kansas: American academy of Family Physicians, 2004.
Citação norma MLAAmerican Family Physician. Kansas: American academy of Family Physicians, 2004.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.