Cita APA (7a ed.)

Research Conference on Natural Family Planning, Uricchio, W. A., & Williams, M. K. (1973). Proceedings of a Research Conference on Natural Family Planning. Human Life Foundation.

Cita Chicago Style (17a ed.)

Research Conference on Natural Family Planning, William A. Uricchio, y Mary Kay Williams. Proceedings of a Research Conference on Natural Family Planning. Washington: Human Life Foundation, 1973.

Cita MLA (9a ed.)

Research Conference on Natural Family Planning, et al. Proceedings of a Research Conference on Natural Family Planning. Human Life Foundation, 1973.