एपीए उद्धरण

Wellesley, D., Boyle, T., Barber, J., & Howe, D. T. (2002). Retrospective audit of different antenatal screening policies for Down's syndrome in eight district general hospitals in one health region. BMJ.

शिकागो स्टाइल उद्धरण

Wellesley, Diana, Tracy Boyle, John Barber, और David T. Howe. Retrospective Audit of Different Antenatal Screening Policies for Down's Syndrome in Eight District General Hospitals in One Health Region. BMJ, 2002.

एमएलए उद्धरण

Wellesley, Diana, Tracy Boyle, John Barber, और David T. Howe. Retrospective Audit of Different Antenatal Screening Policies for Down's Syndrome in Eight District General Hospitals in One Health Region. BMJ, 2002.

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