Zitate

APA-Zitierstil (7. Ausg.)
Howe, D. T., Gornall, R., Wellesley, D., Boyle, T., & Barber, J. (2000). Six year survey of screening for Down's syndrome by maternal age and mid-trimester ultrasound scans. BMJ.
Chicago-Zitierstil (17. Ausg.)
Howe, David T., Robert Gornall, Diana Wellesley, Tracy Boyle, und John Barber. "Six Year Survey of Screening for Down's Syndrome by Maternal Age and Mid-trimester Ultrasound Scans." BMJ 2000.
MLA-Zitierstil (9. Ausg.)
Howe, David T., et al. "Six Year Survey of Screening for Down's Syndrome by Maternal Age and Mid-trimester Ultrasound Scans." BMJ, 2000.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.