Darby, S., Rizza, C., Doll, R., Spooner, R., Stratton, I., & Thakrar, B. (1989). Incidence of AIDS and excess of mortality associated with HIV in haemophiliacs in the United Kingdom: Report on behalf of the directors of haemophilia centres in the United Kingdom.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDarby, S., C. Rizza, R. Doll, R. Spooner, I. Stratton, और B. Thakrar. Incidence of AIDS and Excess of Mortality Associated with HIV in Haemophiliacs in the United Kingdom: Report on Behalf of the Directors of Haemophilia Centres in the United Kingdom. 1989.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDarby, S., et al. Incidence of AIDS and Excess of Mortality Associated with HIV in Haemophiliacs in the United Kingdom: Report on Behalf of the Directors of Haemophilia Centres in the United Kingdom. 1989.