Cassell, K. A., & Hiremath, U. (2009). Reference and information services in the 21st century: An introduction (2nd ed.). Neal-Schuman Publishers.
Chicago-Zitierstil (17. Ausg.)Cassell, Kay Ann, und Uma Hiremath. Reference and Information Services in the 21st Century: An Introduction. 2nd ed. New York: Neal-Schuman Publishers, 2009.
MLA-Zitierstil (9. Ausg.)Cassell, Kay Ann, und Uma Hiremath. Reference and Information Services in the 21st Century: An Introduction. 2nd ed. Neal-Schuman Publishers, 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.