APA aipamena

Washington, A. C., Rosser, P. L., & Cox, E. P. (1983). Contraceptive practices of teenage mothers. National Medical Association.

Chicago Style aipamena

Washington, A. C., P. L. Rosser, and E. P. Cox. Contraceptive Practices of Teenage Mothers. National Medical Association, 1983.

MLA aipamena

Washington, A. C., P. L. Rosser, and E. P. Cox. Contraceptive Practices of Teenage Mothers. National Medical Association, 1983.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.