Sewa Singh. (1997). Handbook of reference and information services. Crest Publishing House.
Chicago ZitierstilSewa Singh. Handbook of Reference and Information Services. New Delhi: Crest Publishing House, 1997.
MLA ZitierstilSewa Singh. Handbook of Reference and Information Services. Crest Publishing House, 1997.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.