O'Grady, M. R., Allen, D. G., Tinsley, D., Houston, D., & Carley, B. (1991). Exercise in Electrocardiography.
Citação norma ChicagoO'Grady, Michael R., Dana G. Allen, Dave Tinsley, Doreen Houston, and Blair Carley. Exercise in Electrocardiography. 1991.
MLA引文O'Grady, Michael R., et al. Exercise in Electrocardiography. 1991.
警告:這些引文格式不一定是100%准確.