APA (7th ed.) Citation

PG, H., Jr, F. C., & HD, L. (1961). A clinical appraisal of the vectorcardiogram in myocardial infarction. II. The Frank system. Circulation, 24, 825. https://doi.org/10.1161/01.cir.24.4.825

Chicago Style (17th ed.) Citation

PG, HUGENHOLTZ, FORKNER CE Jr, and LEVINE HD. "A Clinical Appraisal of the Vectorcardiogram in Myocardial Infarction. II. The Frank System." Circulation 24 (1961): 825. https://doi.org/10.1161/01.cir.24.4.825.

MLA (9th ed.) Citation

PG, HUGENHOLTZ, et al. "A Clinical Appraisal of the Vectorcardiogram in Myocardial Infarction. II. The Frank System." Circulation, vol. 24, 1961, p. 825, https://doi.org/10.1161/01.cir.24.4.825.