Cita APA (7a ed.)

Summerall, C. P. (1985). Lessons in EKG interpretation: A basic self-instruction guide. John Wiley and Sons.

Cita Chicago Style (17a ed.)

Summerall, Charles P. Lessons in EKG Interpretation: A Basic Self-instruction Guide. John Wiley and Sons, 1985.

Cita MLA (9a ed.)

Summerall, Charles P. Lessons in EKG Interpretation: A Basic Self-instruction Guide. John Wiley and Sons, 1985.