APA引文

Howarth, W. (1924). Osteoma causing Mucocele of Frontal Sinus.

Citação norma Chicago

Howarth, Walter. Osteoma Causing Mucocele of Frontal Sinus. 1924.

MLA引文

Howarth, Walter. Osteoma Causing Mucocele of Frontal Sinus. 1924.

警告：這些引文格式不一定是100％准確.