APA (7th ed.) Citation

Sonek, J., & Shellhaas, C. (1998). Cervical sonography: A review. Ultrasound in Obstetrics & Gynecology, 11(1), 71. https://doi.org/10.1046/j.1469-0705.1998.11010071.x

Chicago Style (17th ed.) Citation

Sonek, J., and C. Shellhaas. "Cervical Sonography: A Review." Ultrasound in Obstetrics & Gynecology 11, no. 1 (1998): 71. https://doi.org/10.1046/j.1469-0705.1998.11010071.x.

MLA (9th ed.) Citation

Sonek, J., and C. Shellhaas. "Cervical Sonography: A Review." Ultrasound in Obstetrics & Gynecology, vol. 11, no. 1, 1998, p. 71, https://doi.org/10.1046/j.1469-0705.1998.11010071.x.