APA

Buck C., . (1988). The Challenge of epidemiology. Washington: Who Pan American Health Organization.

Chicago

Buck Carol, . 1988. The Challenge of epidemiology. Washington: Who Pan American Health Organization.

Harvard

Buck C., . (1988). The Challenge of epidemiology. Washington: Who Pan American Health Organization.

MLA

Buck Carol, . The Challenge of epidemiology. Washington: Who Pan American Health Organization. 1988.