APA

Vernon S. D., Unger E. R., Piper M. A., Severin S. T., Wiktor S. Z., Ghys P. D., Miller D. L., Horowitz I. R., Greenberg A. E. & Reeves W. C. (20000105). HIV and human papillomavirus as independent risk factors for cervical neoplasia in women with high or low numbers of sex partners. : Sexually transmitted infections.

Chicago

Vernon S D, Unger E R, Piper M A, Severin S T, Wiktor S Z, Ghys P D, Miller D L, Horowitz I R, Greenberg A E and Reeves W C. 20000105. HIV and human papillomavirus as independent risk factors for cervical neoplasia in women with high or low numbers of sex partners. : Sexually transmitted infections.

Harvard

Vernon S. D., Unger E. R., Piper M. A., Severin S. T., Wiktor S. Z., Ghys P. D., Miller D. L., Horowitz I. R., Greenberg A. E. and Reeves W. C. (20000105). HIV and human papillomavirus as independent risk factors for cervical neoplasia in women with high or low numbers of sex partners. : Sexually transmitted infections.

MLA

Vernon S D, Unger E R, Piper M A, Severin S T, Wiktor S Z, Ghys P D, Miller D L, Horowitz I R, Greenberg A E and Reeves W C. HIV and human papillomavirus as independent risk factors for cervical neoplasia in women with high or low numbers of sex partners. : Sexually transmitted infections. 20000105.