APA (7th ed.) Citation

Roberts, J., Griffiths, F. E., Verran, A., & Ayre, C. (2015). Why do women seek ultrasound scans from commercial providers during pregnancy? Wiley.

Chicago Style (17th ed.) Citation

Roberts, Julie, Frances E. Griffiths, Alice Verran, and Catherine Ayre. Why Do Women Seek Ultrasound Scans from Commercial Providers During Pregnancy? Wiley, 2015.

MLA (9th ed.) Citation

Roberts, Julie, et al. Why Do Women Seek Ultrasound Scans from Commercial Providers During Pregnancy? Wiley, 2015.