APA引文

Williams, B. (1966). Improved Cusco's Vaginal Speculum.

Citação norma Chicago

Williams, Bryan. Improved Cusco's Vaginal Speculum. 1966.

MLA引文

Williams, Bryan. Improved Cusco's Vaginal Speculum. 1966.

警告：這些引文格式不一定是100％准確.