Walker, P. G., Singer, A., Dyson, J. L., Shah, K. V., To, A., & Coleman, D. V. (1983). The prevalence of human papillomavirus antigen in patients with cervical intraepithelial neoplasia. Nature Publishing Group.
Chicago-tyylinen lähdeviittausWalker, P. G., A. Singer, J. L. Dyson, K. V. Shah, A. To, ja D. V. Coleman. The Prevalence of Human Papillomavirus Antigen in Patients With Cervical Intraepithelial Neoplasia. Nature Publishing Group, 1983.
MLA-viiteWalker, P. G., et al. The Prevalence of Human Papillomavirus Antigen in Patients With Cervical Intraepithelial Neoplasia. Nature Publishing Group, 1983.
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