MLA

Friedman, H. Harold. Diagnostic Electrocardiography and Vectorcardiography. 2e ed. New York: McGraw-Hill Book Co., 1977.

APA

Friedman, H. Harold. (1977). Diagnostic electrocardiography and vectorcardiography. 2e ed. New York: McGraw-Hill Book Co.

Chicago

Friedman, H. Harold Diagnostic Electrocardiography and Vectorcardiography. 2e ed. New York: McGraw-Hill Book Co., 1977.