Cita APA (7th ed.)

Ranches, A. D., & Malicdem, E. A. Birth control methods used by selected urban poor couples.

Cita Chicago (17th ed.)

Ranches, Alice Dacocos, i Eleanor A. Malicdem. Birth Control Methods Used by Selected Urban Poor Couples. 2005.

Cita MLA (9th ed.)

Ranches, Alice Dacocos, i Eleanor A. Malicdem. Birth Control Methods Used by Selected Urban Poor Couples.