Lal Sudarshan. (1978). how to prevent industrial sickness: Symptoms & rehabilitation. Navarang.
Dyfyniad Arddull ChicagoLal Sudarshan. How to Prevent Industrial Sickness: Symptoms & Rehabilitation. New Delhi: Navarang, 1978.
Dyfyniad MLALal Sudarshan. How to Prevent Industrial Sickness: Symptoms & Rehabilitation. Navarang, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.