Παραπομπή APA

Wald, N., & Parkes, C. (1993). Screening for ovarian cancer. Still controversial, but encouraging.

Παραπομπή Chicago Style

Wald, N., και C. Parkes. Screening for Ovarian Cancer. Still Controversial, but Encouraging. 1993.

Παραπομπή MLA

Wald, N., και C. Parkes. Screening for Ovarian Cancer. Still Controversial, but Encouraging. 1993.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.