APA Edition Citation

Sehgal, R. L. A. (2002). An introduction to Universal Decimal Classification.

Chicago Edition Citation

Sehgal, R L; Author. An Introduction to Universal Decimal Classification. New Delhi, Ess Ess Publications, 2002.

MLA Edition Citation

Sehgal, R L; Author. An Introduction to Universal Decimal Classification. 2002.

Warning: These citations may not always be 100% accurate.