Παραπομπή σε μορφή APA (7η εκδ.)

Operario, D., Underhill, K., Chuong, C., & Cluver, L. (2011). HIV infection and sexual risk behaviour among youth who have experienced orphanhood: Systematic review and meta-analysis. BioMed Central.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Operario, D., K. Underhill, C. Chuong, και L. Cluver. HIV Infection and Sexual Risk Behaviour Among Youth Who Have Experienced Orphanhood: Systematic Review and Meta-analysis. BioMed Central, 2011.

Παραπομπή σε μορφή MLA (9th εκδ.)

Operario, D., et al. HIV Infection and Sexual Risk Behaviour Among Youth Who Have Experienced Orphanhood: Systematic Review and Meta-analysis. BioMed Central, 2011.