APA Citatie

Irwin, K. L., Rosero Bixby, L., Oberle, M. W., Lee, N. C., Whatley, A. S., Fortney, J. A., & Bonhomme, M. G. (1988). Oral Contraceptives and Cervical Cancer Risk in Costa Rica: Detection Bias or Causal Association.

Chicago Style citaat

Irwin, Kathleen L., Luis Rosero Bixby, Mark W. Oberle, Nancy C. Lee, Anne S. Whatley, Judith A. Fortney, en Michele G. Bonhomme. Oral Contraceptives and Cervical Cancer Risk in Costa Rica: Detection Bias or Causal Association. 1988.

MLA citatie

Irwin, Kathleen L., et al. Oral Contraceptives and Cervical Cancer Risk in Costa Rica: Detection Bias or Causal Association. 1988.