Government of India. (1959). The national sample survey: Some characteristics of the economically active population. Government of India.
Chicago-referens (17:e uppl.)Government of India. The National Sample Survey: Some Characteristics of the Economically Active Population. New Delhi: Government of India, 1959.
MLA-referens (9:e uppl.)Government of India. The National Sample Survey: Some Characteristics of the Economically Active Population. Government of India, 1959.
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