Nag, M. (1984). Constrain on the use of fertility regulating methods. The Population Council.
Cita Chicago (17th ed.)Nag, Moni. Constrain on the Use of Fertility Regulating Methods. New York: The Population Council, 1984.
Cita MLA (9th ed.)Nag, Moni. Constrain on the Use of Fertility Regulating Methods. The Population Council, 1984.
Atenció: Aquestes cites poden no estar 100% correctes.