APA引文

Ovid Technologies (Firm). National Library of Medicine (U.S.). (1996). HealthStar [computer file]. Ovid Technologies.

芝加哥风格引文

Ovid Technologies (Firm). National Library of Medicine (U.S.). HealthStar [computer File]. s.l: Ovid Technologies, 1996.

MLA引文

Ovid Technologies (Firm). National Library of Medicine (U.S.). HealthStar [computer File]. Ovid Technologies, 1996.

警告：这些引文格式不一定是100％准确.