APA način citiranja

Spencer, J., & Rodeck, C. (1989). Antenatal screening with umbilical artery Doppler ultrasonography.

Čikaški stil citiranja

Spencer, John, i C. Rodeck. Antenatal Screening With Umbilical Artery Doppler Ultrasonography. 1989.

MLA način citiranja

Spencer, John, i C. Rodeck. Antenatal Screening With Umbilical Artery Doppler Ultrasonography. 1989.

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