APA استشهاد

Bose, H. (1990). Universal decimal classification: Theory and practice (Ed.2.).

استشهاد بنمط شيكاغو

Bose, H. Universal Decimal Classification: Theory and Practice. Ed.2. New Delhi, Sterling Publishers, 1990.

MLA استشهاد

Bose, H. Universal Decimal Classification: Theory and Practice. Ed.2. 1990.