APA Edition Citation

Sardana, J. L., & Sehgal, R. L. (1983). Universal decimal classification: Structure and methodology. Ess Ess Publications.

Chicago Edition Citation

Sardana, J. L., and R. L. Sehgal. Universal Decimal Classification: Structure and Methodology. Delhi: Ess Ess Publications, 1983.

MLA Edition Citation

Sardana, J. L., and R. L. Sehgal. Universal Decimal Classification: Structure and Methodology. Ess Ess Publications, 1983.