Cita APA (7th ed.)

Echem, R. R., & Marquez, M. P. N. (2016). Gender differentials in the premarital sexual initiation of Zamboanga Peninsula youth. Commision on Population.

Cita Chicago (17th ed.)

Echem, Rosalyn R., i Maria Paz N. Marquez. Gender Differentials in the Premarital Sexual Initiation of Zamboanga Peninsula Youth. Mandaluyong City: Commision on Population, 2016.

Cita MLA (9th ed.)

Echem, Rosalyn R., i Maria Paz N. Marquez. Gender Differentials in the Premarital Sexual Initiation of Zamboanga Peninsula Youth. Commision on Population, 2016.