Evans, S. M., Cooper, J. C., & Thornton, S. (1993). Umbilical cord clamping in preterm infants.
Chicago Style aipamenaEvans, S M., J C. Cooper, and S. Thornton. Umbilical Cord Clamping in Preterm Infants. 1993.
MLA aipamenaEvans, S M., J C. Cooper, and S. Thornton. Umbilical Cord Clamping in Preterm Infants. 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.