Cita APA (7a ed.)

Berelson, B. (1969). Population: Challenging world crisis. Voice of America.

Cita Chicago Style (17a ed.)

Berelson, Bernard. Population: Challenging World Crisis. Washington: Voice of America, 1969.

Cita MLA (8a ed.)

Berelson, Bernard. Population: Challenging World Crisis. Voice of America, 1969.