Lal.c & K Kumar. (2010). Objective questions in Library and information science. Ess EssPublications.
Chicago-tyylinen lähdeviittausLal.c & K Kumar. Objective Questions in Library and Information Science. New Delhi: Ess EssPublications, 2010.
MLA-viiteLal.c & K Kumar. Objective Questions in Library and Information Science. Ess EssPublications, 2010.
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