Ramos-Alcocer, J. F. (2009). Unwanted teenage pregnancy, can it be prevented? UAT promotes awareness. Universidad Autónoma de Tamaulipas.
Chicago-referens (17:e uppl.)Ramos-Alcocer, José Francisco. Unwanted Teenage Pregnancy, Can It Be Prevented? UAT Promotes Awareness. Universidad Autónoma de Tamaulipas, 2009.
MLA-referens (8:e uppl.)Ramos-Alcocer, José Francisco. Unwanted Teenage Pregnancy, Can It Be Prevented? UAT Promotes Awareness. Universidad Autónoma de Tamaulipas, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.
