Mild Ebstein's anomaly.

MLA

Pocock, W. A., et al. “Mild Ebstein’s Anomaly.” British Heart Journal, vol. 31, no. 3, May 1969, pp. 327–36. EBSCOhost, https://doi.org/10.1136/hrt.31.3.327.

APA

Pocock, W. A., Tucker, R. B., & Barlow, J. B. (1969). Mild Ebstein’s anomaly. British Heart Journal, 31(3), 327–336. https://doi.org/10.1136/hrt.31.3.327

Chicago

Pocock, W A, R B Tucker, and J B Barlow. 1969. “Mild Ebstein’s Anomaly.” British Heart Journal 31 (3): 327–36. doi:10.1136/hrt.31.3.327.