Cita APA (7th ed.)

Iversen, A., Learn, G., Fugger, L., Gerstoft, J., Mullins, J., & Skinhoj, P. (1999). Presence of multiple HIV subtypes and a high frequency of subtype chimeric viruses in heterosexually infected women.

Cita Chicago (17th ed.)

Iversen, A., G. Learn, L. Fugger, J. Gerstoft, J. Mullins, i P. Skinhoj. Presence of Multiple HIV Subtypes and a High Frequency of Subtype Chimeric Viruses in Heterosexually Infected Women. 1999.

Cita MLA (9th ed.)

Iversen, A., et al. Presence of Multiple HIV Subtypes and a High Frequency of Subtype Chimeric Viruses in Heterosexually Infected Women. 1999.