Παραπομπή σε μορφή APA (7η εκδ.)

Casslén, B. (1981). Proteinases and proteinase inhibitors in uterine fluid: With special reference to IUD-users. Scandinavian Association of Obstetricians and Gynecologists.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Casslén, Bertil. Proteinases and Proteinase Inhibitors in Uterine Fluid: With Special Reference to IUD-users. Lund: Scandinavian Association of Obstetricians and Gynecologists, 1981.

Παραπομπή σε μορφή MLA (8th εκδ.)

Casslén, Bertil. Proteinases and Proteinase Inhibitors in Uterine Fluid: With Special Reference to IUD-users. Scandinavian Association of Obstetricians and Gynecologists, 1981.