APA (7th ed.) Citation

Thomas, S. E. (1990). CatTutor: A Hypertext Tool for Catalogers.

Chicago Style (17th ed.) Citation

Thomas, Sarah E. CatTutor: A Hypertext Tool for Catalogers. 1990.

MLA (9th ed.) Citation

Thomas, Sarah E. CatTutor: A Hypertext Tool for Catalogers. 1990.

Warning: These citations may not always be 100% accurate.