Citação norma APA

India. Directorate of National Sample Survey. (1971). National sample survey no. 181, 21st round tables with notes on urban labour force. National Sample Survey Organisation.

Citação norma Chicago

India. Directorate of National Sample Survey. National Sample Survey No. 181, 21st Round Tables with Notes on Urban Labour Force. Delhi: National Sample Survey Organisation, 1971.

Citação norma MLA

India. Directorate of National Sample Survey. National Sample Survey No. 181, 21st Round Tables with Notes on Urban Labour Force. National Sample Survey Organisation, 1971.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.