Diagnostic electrocardiography and vectorcardiography
  MLA
  Friedman, H. Harold. Diagnostic Electrocardiography and Vectorcardiography. 3rd ed. New York: McGraw-Hill, 1985.
  APA
  Friedman, H. Harold. (1985). Diagnostic electrocardiography and vectorcardiography. 3rd ed. New York: McGraw-Hill.
  Chicago
  Friedman, H. Harold Diagnostic Electrocardiography and Vectorcardiography. 3rd ed. New York: McGraw-Hill, 1985.