APA
Böni J., Pyra H., Gebhardt M., Perrin L., Bürgisser P., Matter L., Fierz W., Erb P., Piffaretti J. C., Minder E., Grob P., Burckhardt J. J., Zwahlen M. & Schüpbach J. (20000620). High frequency of non-B subtypes in newly diagnosed HIV-1 infections in Switzerland. : Journal of acquired immune deficiency syndromes (1999).
Chicago
Böni J, Pyra H, Gebhardt M, Perrin L, Bürgisser P, Matter L, Fierz W, Erb P, Piffaretti J C, Minder E, Grob P, Burckhardt J J, Zwahlen M and Schüpbach J. 20000620. High frequency of non-B subtypes in newly diagnosed HIV-1 infections in Switzerland. : Journal of acquired immune deficiency syndromes (1999).
Harvard
Böni J., Pyra H., Gebhardt M., Perrin L., Bürgisser P., Matter L., Fierz W., Erb P., Piffaretti J. C., Minder E., Grob P., Burckhardt J. J., Zwahlen M. and Schüpbach J. (20000620). High frequency of non-B subtypes in newly diagnosed HIV-1 infections in Switzerland. : Journal of acquired immune deficiency syndromes (1999).
MLA
Böni J, Pyra H, Gebhardt M, Perrin L, Bürgisser P, Matter L, Fierz W, Erb P, Piffaretti J C, Minder E, Grob P, Burckhardt J J, Zwahlen M and Schüpbach J. High frequency of non-B subtypes in newly diagnosed HIV-1 infections in Switzerland. : Journal of acquired immune deficiency syndromes (1999). 20000620.