Cita APA (7th ed.)

Levin, H. L., & Gillespie, R. W. (1974). The use of radio in family planning. World Neighbors.

Cita Chicago (17th ed.)

Levin, Harry Leon, i Robert W. Gillespie. The Use of Radio in Family Planning. Oklahoma City: World Neighbors, 1974.

Cita MLA (9th ed.)

Levin, Harry Leon, i Robert W. Gillespie. The Use of Radio in Family Planning. World Neighbors, 1974.