Citação norma APA
SIU, A., & ET AL. (1990). GERIATRIC MEDICINE IN THE UNITED STATES, THE CURRENT ACTIVITIES OF FORMER TRAINEES.
Citação norma Chicago
SIU, A.L, and ET AL. GERIATRIC MEDICINE IN THE UNITED STATES, THE CURRENT ACTIVITIES OF FORMER TRAINEES. 1990.
Citação norma MLA
SIU, A.L, and ET AL. GERIATRIC MEDICINE IN THE UNITED STATES, THE CURRENT ACTIVITIES OF FORMER TRAINEES. 1990.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.