Petch, M. C. (1987). Coronary angioplasty: Time for reappraisal.
Citação norma ChicagoPetch, M C. Coronary Angioplasty: Time for Reappraisal. 1987.
MLA引文Petch, M C. Coronary Angioplasty: Time for Reappraisal. 1987.
警告：這些引文格式不一定是100％准確.
APA引文