APA (7th ed.) Zitazioa

Cassell, K. A., & Hiremath, U. (2018). Reference and information services: An introduction (Fourth edition.). ALA Neal-Schuman, an imprint of the American Library Association.

Chicago Style (17th ed.) Zitazioa

Cassell, Kay Ann, eta Uma Hiremath. Reference and Information Services: An Introduction. Fourth edition. Chicago: ALA Neal-Schuman, an imprint of the American Library Association, 2018.

MLA (9th ed.) Zitazioa

Cassell, Kay Ann, eta Uma Hiremath. Reference and Information Services: An Introduction. Fourth edition. ALA Neal-Schuman, an imprint of the American Library Association, 2018.