Murphy, K., Pelton, J. ECG essentials. Chicago: Quintessence Publishing Co, 1991 176 p. 0-86715-222-2.
Murphy, K., Pelton, J. ECG essentials. Chicago: Quintessence Publishing Co, 1991 176 p. 0-86715-222-2.
Murphy, K., Pelton, J. (1991) ECG essentials, Chicago: Quintessence Publishing Co 176 p. 0-86715-222-2.
Murphy, K., & Pelton, J. (1991). ECG essentials. A pocket reference for systematic interpretation. Chicago: Quintessence Publishing Co, 176 p.
Murphy K, Pelton J. ECG essentials: A pocket reference for systematic interpretation. Chicago: Quintessence Publishing Co; 1991. p. 176 p. ISBN: 0-86715-222-2.