APA-viite

Sandhya Aggarwal. (2012). Library services: Challenges and solutions in digital era. ESS ESS Pubs.

Chicago-tyylinen lähdeviittaus

Sandhya Aggarwal. Library Services: Challenges and Solutions in Digital Era. ESS ESS Pubs, 2012.

MLA-viite

Sandhya Aggarwal. Library Services: Challenges and Solutions in Digital Era. ESS ESS Pubs, 2012.

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