Ehrat, K. S. (1997). The art of EKG interpretation: A self-instructional text (4th ed.). Kendall/Hunt.
Chicago Style (17th ed.) CitationEhrat, Karen S. The Art of EKG Interpretation: A Self-instructional Text. 4th ed. Dubuque,Iowa: Kendall/Hunt, 1997.
MLA (9th ed.) CitationEhrat, Karen S. The Art of EKG Interpretation: A Self-instructional Text. 4th ed. Kendall/Hunt, 1997.
Warning: These citations may not always be 100% accurate.