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.
Cita Chicago Style (17a ed.)Darby, S., C. Rizza, R. Doll, R. Spooner, I. Stratton, y 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.
Cita MLA (9a ed.)Darby, 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.