Cita APA (7a ed.)

Robbins, S., McCain, C., & Scrivener, L. (2006). The Changing Format of Reference Collections: Are Research Libraries Favoring Electronic Access over Print?

Cita Chicago Style (17a ed.)

Robbins, Sarah, Cheryl McCain, y Laurie Scrivener. The Changing Format of Reference Collections: Are Research Libraries Favoring Electronic Access over Print? 2006.

Cita MLA (9a ed.)

Robbins, Sarah, et al. The Changing Format of Reference Collections: Are Research Libraries Favoring Electronic Access over Print? 2006.