Government of India. (1959). The national sample survey: Some characteristics of the economically active population. Government of India.
Chicago Style aipamenaGovernment of India. The National Sample Survey: Some Characteristics of the Economically Active Population. New Delhi: Government of India, 1959.
MLA aipamenaGovernment of India. The National Sample Survey: Some Characteristics of the Economically Active Population. Government of India, 1959.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.