APA استشهاد

Sewa Singh. (1989). Index and indexing systems. Medallion press.

استشهاد بنمط شيكاغو

Sewa Singh. Index and Indexing Systems. New Delhi: Medallion press, 1989.

MLA استشهاد

Sewa Singh. Index and Indexing Systems. Medallion press, 1989.