Παραπομπή APA

Mears, E., Vessey, M. P., Andolšek, L., & Oven, A. (1969). Preliminary Evaluation of Four Oral Contraceptives Containing only Progestogens.

Παραπομπή Chicago Style

Mears, Eleanor, M. P. Vessey, Lidija Andolšek, και Antonija Oven. Preliminary Evaluation of Four Oral Contraceptives Containing Only Progestogens. 1969.

Παραπομπή MLA

Mears, Eleanor, M. P. Vessey, Lidija Andolšek, και Antonija Oven. Preliminary Evaluation of Four Oral Contraceptives Containing Only Progestogens. 1969.

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