एपीए उद्धरण

Schlessel, J. S., Brown, W. T., Lysikiewicz, A., Schiff, R., & Zaslav, A. L. (1990). Monozygotic twins with trisomy 18: A report of discordant phenotype.

शिकागो स्टाइल उद्धरण

Schlessel, J S., W T. Brown, A. Lysikiewicz, R. Schiff, और A L. Zaslav. Monozygotic Twins With Trisomy 18: A Report of Discordant Phenotype. 1990.

एमएलए उद्धरण

Schlessel, J S., et al. Monozygotic Twins With Trisomy 18: A Report of Discordant Phenotype. 1990.