Παραπομπή APA

Krishan, K. (1982). Reference service. Vikas Publishing House Pvt Ltd.

Παραπομπή Chicago Style

Krishan, Kumar. Reference Service. New Delhi: Vikas Publishing House Pvt Ltd, 1982.

Παραπομπή MLA

Krishan, Kumar. Reference Service. Vikas Publishing House Pvt Ltd, 1982.