APA (7th ed.) Citation

Tenopir, C., & Neufang, R. (1992). Electronic Reference Options: How They Stack Up in Research Libraries.

Chicago Style (17th ed.) Citation

Tenopir, Carol, and Ralf Neufang. Electronic Reference Options: How They Stack Up in Research Libraries. 1992.

MLA (9th ed.) Citation

Tenopir, Carol, and Ralf Neufang. Electronic Reference Options: How They Stack Up in Research Libraries. 1992.

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