APA (7e ed.) Bronvermelding
Engs, R. C. (2003). The progressive era's health reform movement: A historical dictionary. Praeger.
Chicago (17e ed.) Bronvermelding
Engs, Ruth Clifford. The Progressive Era's Health Reform Movement: A Historical Dictionary. Westport, CT: Praeger, 2003.
MLA (9e ed.) Bronvermelding
Engs, Ruth Clifford. The Progressive Era's Health Reform Movement: A Historical Dictionary. Praeger, 2003.
Let op: Deze citaties zijn niet altijd 100% accuraat.