Gibb, D., & Arulkumaran, S. (1992). Fetal monitoring in practice.
Chicago Style aipamenaGibb, Donald, and S. Arulkumaran. Fetal Monitoring in Practice. 1992.
MLA aipamenaGibb, Donald, and S. Arulkumaran. Fetal Monitoring in Practice. 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.