APA引文

(1973). Gastrointestinal tract disease syllabus. s.n.

Chicago Style (17th ed.) Citation

Gastrointestinal Tract Disease Syllabus. Chicago: s.n, 1973.

MLA引文

Gastrointestinal Tract Disease Syllabus. s.n, 1973.

警告：這些引文格式不一定是100％准確.