APA Citation

O'Farrell, N. (1991). Preventing the spread of HIV infection.

Citação norma Chicago

O'Farrell, N. Preventing the Spread of HIV Infection. 1991.

MLA Citation

O'Farrell, N. Preventing the Spread of HIV Infection. 1991.

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.