Scherf, D., & Boyd, L. J. (1940). Clinical electrocardiography. William Heinemann.
Chicago Style (17th ed.) CitationScherf, David, and Linn J. Boyd. Clinical Electrocardiography. London, GB: William Heinemann, 1940.
MLA (9th ed.) CitationScherf, David, and Linn J. Boyd. Clinical Electrocardiography. William Heinemann, 1940.