APA-referens (7:e uppl.)
International conference on AIDS Firenze & Istituto superiore di sanità. (1991). Science challenging Aids: Final program : 7. international conference on AIDS : Florence 16-21 June 1991. s.n.].
Chicago-referens (17:e uppl.)
International conference on AIDS Firenze och Istituto superiore di sanità. Science Challenging Aids: Final Program : 7. International Conference on AIDS : Florence 16-21 June 1991. [S.l.: s.n.], 1991.
MLA-referens (9:e uppl.)
International conference on AIDS Firenze och Istituto superiore di sanità. Science Challenging Aids: Final Program : 7. International Conference on AIDS : Florence 16-21 June 1991. s.n.], 1991.
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