APA Citatie

Porterfield, J. D. Community Health in United in the United states. Voice of America.

Chicago Style citaat

Porterfield, John D. Community Health in United in the United States. New York: Voice of America.

MLA citatie

Porterfield, John D. Community Health in United in the United States. Voice of America.

Let op: Deze citaties zijn niet altijd 100% accuraat.