APA (7th ed.) Citation

International Congress on Electrocardiology Varna, Bulgaria, International Symposium on Vectorcardiography, Abel, H., & Pavlov, Z. (1977). Electrocardiology II: Physiological, pathophysiological and diagnostical research : proceedings of the 2nd International congress on Electrocardiology (16th International Symposium on Vectorcardiography), Varna, October 10-13, 1975. S. Karger.

Chicago Style (17th ed.) Citation

International Congress on Electrocardiology Varna, Bulgaria, International Symposium on Vectorcardiography, Hubert Abel, and Z. Pavlov. Electrocardiology II: Physiological, Pathophysiological and Diagnostical Research : Proceedings of the 2nd International Congress on Electrocardiology (16th International Symposium on Vectorcardiography), Varna, October 10-13, 1975. Basel ; New York: S. Karger, 1977.

MLA (9th ed.) Citation

International Congress on Electrocardiology Varna, Bulgaria, et al. Electrocardiology II: Physiological, Pathophysiological and Diagnostical Research : Proceedings of the 2nd International Congress on Electrocardiology (16th International Symposium on Vectorcardiography), Varna, October 10-13, 1975. S. Karger, 1977.