APA-Zitierstil (7. Ausg.)

Cassell, K. A., & Hiremath, U. (2009). Reference and information services in the 21st century: An introduction (2. ed.). Facet.

Chicago-Zitierstil (17. Ausg.)

Cassell, Kay Ann, und Uma Hiremath. Reference and Information Services in the 21st Century: An Introduction. 2. ed. London: Facet, 2009.

MLA-Zitierstil (9. Ausg.)

Cassell, Kay Ann, und Uma Hiremath. Reference and Information Services in the 21st Century: An Introduction. 2. ed. Facet, 2009.