APA Edition Citation

R L Sehgal. (1994). An introduction to Universal Decimal Classification. Ess Ess.

Chicago Edition Citation

R L Sehgal. An Introduction to Universal Decimal Classification. New Delhi: Ess Ess, 1994.

MLA Edition Citation

R L Sehgal. An Introduction to Universal Decimal Classification. Ess Ess, 1994.

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