Government of India. (1959). The national sample survey: Some characteristics of the economically active population. Government of India.
Dyfyniad Arddull ChicagoGovernment of India. The National Sample Survey: Some Characteristics of the Economically Active Population. New Delhi: Government of India, 1959.
Dyfyniad MLAGovernment of India. The National Sample Survey: Some Characteristics of the Economically Active Population. Government of India, 1959.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.