APA (7th ed.) Citation

Chadwyck-Healey Ltd. (2005). C19, the nineteenth century index. Chadwyck-Healey ; ProQuest information and Learning Co..

Chicago Style (17th ed.) Citation

Chadwyck-Healey Ltd. C19, the Nineteenth Century Index. [Cambridge, U.K. : Ann Arbor, Mich. ?]: Chadwyck-Healey ; ProQuest information and Learning Co., 2005.

MLA (8th ed.) Citation

Chadwyck-Healey Ltd. C19, the Nineteenth Century Index. Chadwyck-Healey ; ProQuest information and Learning Co., 2005.