APA-viite (7. p.)

Darby, S., Ewart, D., Giangrande, P., Spooner, R., & Rizza, C. (1996). Importance of age at infection with HIV-1 for survival and development of AIDS in UK haemophilia population. UK Haemophilia Centre Directors' Organisation.

Chicago-viite (17. p.)

Darby, S., D. Ewart, P. Giangrande, R. Spooner, ja C. Rizza. Importance of Age at Infection with HIV-1 for Survival and Development of AIDS in UK Haemophilia Population. UK Haemophilia Centre Directors' Organisation. 1996.

MLA-viite (9. p.)

Darby, S., et al. Importance of Age at Infection with HIV-1 for Survival and Development of AIDS in UK Haemophilia Population. UK Haemophilia Centre Directors' Organisation. 1996.