Directory of history of medicine collections.

MLA

Smith, Cristal. Directory of History of Medicine Collections. 17th ed. Bethesda: US Department of Health and Human Science Services, 2010.

APA

Smith, C. (2010). Directory of history of medicine collections. 17th ed. Bethesda: US Department of Health and Human Science Services.

Chicago

Smith, Cristal ed. Directory of History of Medicine Collections. 17th ed. Bethesda: US Department of Health and Human Science Services, 2010.