Cassell, K. A., & Hiremath, U. (2011). Reference and information services in the 21st century: An introduction (2nd ed. rev.). Neal-Schuman Publishers.
Цитирование в стиле Чикаго (17-е изд.)Cassell, Kay Ann, и Uma Hiremath. Reference and Information Services in the 21st Century: An Introduction. 2nd ed. rev. New York: Neal-Schuman Publishers, 2011.
Цитирование MLA (9-е изд.)Cassell, Kay Ann, и Uma Hiremath. Reference and Information Services in the 21st Century: An Introduction. 2nd ed. rev. Neal-Schuman Publishers, 2011.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.