APA引文

Clark, R. W. (1961). Orientation in pharmacy. [s.n.].

芝加哥风格引文

Clark, R. W. Orientation in Pharmacy. [s.l.]: [s.n.], 1961.

MLA引文

Clark, R. W. Orientation in Pharmacy. [s.n.], 1961.

警告：这些引文格式不一定是100％准确.