APA Edition Citation

Dilip,R.Ahuja, Pachauri,R.K, & Gopalakrishnan, N. (1984). National energy data systems. Concept Publishing company.

Chicago Edition Citation

Dilip,R.Ahuja, Pachauri,R.K, and N.K Gopalakrishnan. National Energy Data Systems. New Delhi: Concept Publishing company, 1984.

MLA Edition Citation

Dilip,R.Ahuja, et al. National Energy Data Systems. Concept Publishing company, 1984.