Não informado. Progress in Health Services. Health Information Foundation.
Chicago-Zitierstil (17. Ausg.)Não informado. Progress in Health Services. Chicago, Ill: Health Information Foundation.
MLA-Zitierstil (8. Ausg.)Não informado. Progress in Health Services. Health Information Foundation.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.