Cita APA (7th ed.)

Mamlouk, M. (1982). Knowledge and use of contraception in twenty developing countries. Population Reference Bureau.

Cita Chicago (17th ed.)

Mamlouk, Maria. Knowledge and Use of Contraception in Twenty Developing Countries. Washington, D.C: Population Reference Bureau, 1982.

Cita MLA (9th ed.)

Mamlouk, Maria. Knowledge and Use of Contraception in Twenty Developing Countries. Population Reference Bureau, 1982.