Dyfyniad APA

Rosero Bixby, L. (1991). Premarital sex in Costa Rica: Incidence, trends and determinants.

Dyfyniad Arddull Chicago

Rosero Bixby, Luis. Premarital Sex in Costa Rica: Incidence, Trends and Determinants. 1991.

Dyfyniad MLA

Rosero Bixby, Luis. Premarital Sex in Costa Rica: Incidence, Trends and Determinants. 1991.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.