Nagaiya, D. (1991). Industrial sickness: A health monitoring approach.
Chicago Style aipamenaNagaiya, D. Industrial Sickness: A Health Monitoring Approach. Discovery Publishing House: New Delhi, 1991.
MLA aipamenaNagaiya, D. Industrial Sickness: A Health Monitoring Approach. 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.