APA aipamena

Clifford, G. M., Smith, J. S., Plummer, M., Muñoz, N., & Franceschi, S. (2003). Human papillomavirus types in invasive cervical cancer worldwide: A meta-analysis. Nature Publishing Group.

Chicago Style aipamena

Clifford, G M., J S. Smith, M. Plummer, N. Muñoz, and S. Franceschi. Human Papillomavirus Types in Invasive Cervical Cancer Worldwide: A Meta-analysis. Nature Publishing Group, 2003.

MLA aipamena

Clifford, G M., et al. Human Papillomavirus Types in Invasive Cervical Cancer Worldwide: A Meta-analysis. Nature Publishing Group, 2003.