APA引文

Hills, E. A. (1971). Cylindroma of the trachea and left main bronchus.

Citação norma Chicago

Hills, E. A. Cylindroma of the Trachea and Left Main Bronchus. 1971.

MLA引文

Hills, E. A. Cylindroma of the Trachea and Left Main Bronchus. 1971.

警告：這些引文格式不一定是100％准確.