Merkoša sitáhtat

APA-čujuhus (7. p.)
Engs, R. C. (2003). The progressive era's health reform movement: A historical dictionary. Praeger.
Chicago-čujuhus (17. p.)
Engs, Ruth Clifford. The Progressive Era's Health Reform Movement: A Historical Dictionary. Westport, CT: Praeger, 2003.
MLA-čujuhus (9. p.)
Engs, Ruth Clifford. The Progressive Era's Health Reform Movement: A Historical Dictionary. Praeger, 2003.
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