APA (7th ed.) Citation

Johnson, N., Johnson, V. A., Bannister, J., & Lilford, R. J. (1991). The accuracy of fetal pulse oximetry in the second stage of labour. Journal of perinatal medicine, 19(4), 297.

Chicago Style (17th ed.) Citation

Johnson, N., V A. Johnson, J. Bannister, and R J. Lilford. "The Accuracy of Fetal Pulse Oximetry in the Second Stage of Labour." Journal of Perinatal Medicine 19, no. 4 (1991): 297.

MLA (9th ed.) Citation

Johnson, N., et al. "The Accuracy of Fetal Pulse Oximetry in the Second Stage of Labour." Journal of Perinatal Medicine, vol. 19, no. 4, 1991, p. 297.