Cita APA (7a ed.)

Bell, M. V., Bacon, J. C., & Hepler, J. C. (1957). Poole's index: Date and volume key. Association of College and Reference Libraries.

Cita Chicago Style (17a ed.)

Bell, Marion V., Jean C. Bacon, y John C. Hepler. Poole's Index: Date and Volume Key. Chicago: Association of College and Reference Libraries, 1957.

Cita MLA (8a ed.)

Bell, Marion V., et al. Poole's Index: Date and Volume Key. Association of College and Reference Libraries, 1957.