APA (7th ed.) Citation

W, D. B., HC, B., & JB, V. M. (1955). Vectorcardiograms of normal and premature beats in different lead systems. British heart journal, 17(1), 1. https://doi.org/10.1136/hrt.17.1.1

Chicago Style (17th ed.) Citation

W, DEN BOER, BURGER HC, and VAN MILAAN JB. "Vectorcardiograms of Normal and Premature Beats in Different Lead Systems." British Heart Journal 17, no. 1 (1955): 1. https://doi.org/10.1136/hrt.17.1.1.

MLA (9th ed.) Citation

W, DEN BOER, et al. "Vectorcardiograms of Normal and Premature Beats in Different Lead Systems." British Heart Journal, vol. 17, no. 1, 1955, p. 1, https://doi.org/10.1136/hrt.17.1.1.