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Information Sources and Services
Notes Katz, William A. (1987) Introduction to reference work: reference service and reference
process. v.2. Ed. 5. McGraw-Hill, New York.
Krishan Kumar (1996) Reference service. Ed. 3. Vikas Publishing, New Delhi.
Online links education.yahoo.com/reference/encyclopaedia
en.wikipedia.org/wiki/Encyclopaedia
www.britannica.com/
www.nlm.nih.gov/medlineplus/encyclopedia.html
174 LOVELY PROFESSIONAL UNIVERSITY
