APA (7th ed.) Citation

O'Keefe, J. H. (2008). The complete guide to ECGs (3rd ed.). Physicians' Press.

Chicago Style (17th ed.) Citation

O'Keefe, James H. The Complete Guide to ECGs. 3rd ed. Sudbury, Mass: Physicians' Press, 2008.

MLA (9th ed.) Citation

O'Keefe, James H. The Complete Guide to ECGs. 3rd ed. Physicians' Press, 2008.

Warning: These citations may not always be 100% accurate.