APA Zitierstil

Gurdev Singh. (2015). Academic library system and services. Ess Ess Pub..

Chicago Zitierstil

Gurdev Singh. Academic Library System and Services. New Delhi, India: Ess Ess Pub., 2015.

MLA Zitierstil

Gurdev Singh. Academic Library System and Services. Ess Ess Pub., 2015.