Tohutoro APA (7th ed.)
Chowdhury, G. (2004). Digital reference service. Emerald Group.
Tohutoru Kātū Chicago (17th ed.)
Chowdhury, Gobinda. Digital Reference Service. Bradford, England: Emerald Group, 2004.
Tohutoro MLA (9th ed.)
Chowdhury, Gobinda. Digital Reference Service. Emerald Group, 2004.
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