APA

Koutsky L. A., Holmes K. K., Critchlow C. W., Stevens C. E., Paavonen J., Beckmann A. M., DeRouen T. A., Galloway D. A., Vernon D. & Kiviat N. B. (19921104). A cohort study of the risk of cervical intraepithelial neoplasia grade 2 or 3 in relation to papillomavirus infection. : The New England journal of medicine.

Chicago

Koutsky L A, Holmes K K, Critchlow C W, Stevens C E, Paavonen J, Beckmann A M, DeRouen T A, Galloway D A, Vernon D and Kiviat N B. 19921104. A cohort study of the risk of cervical intraepithelial neoplasia grade 2 or 3 in relation to papillomavirus infection. : The New England journal of medicine.

Harvard

Koutsky L. A., Holmes K. K., Critchlow C. W., Stevens C. E., Paavonen J., Beckmann A. M., DeRouen T. A., Galloway D. A., Vernon D. and Kiviat N. B. (19921104). A cohort study of the risk of cervical intraepithelial neoplasia grade 2 or 3 in relation to papillomavirus infection. : The New England journal of medicine.

MLA

Koutsky L A, Holmes K K, Critchlow C W, Stevens C E, Paavonen J, Beckmann A M, DeRouen T A, Galloway D A, Vernon D and Kiviat N B. A cohort study of the risk of cervical intraepithelial neoplasia grade 2 or 3 in relation to papillomavirus infection. : The New England journal of medicine. 19921104.