Cripps, T., Pumphrey, C. W., & Parker, D. J. (1987). Rupture of the sinus of Valsalva during pregnancy.
Chicago Style aipamenaCripps, T., C W. Pumphrey, and D J. Parker. Rupture of the Sinus of Valsalva During Pregnancy. 1987.
MLA aipamenaCripps, T., C W. Pumphrey, and D J. Parker. Rupture of the Sinus of Valsalva During Pregnancy. 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.