Dyfyniad APA

India. Directorate of National Sample Survey. (1970). National sample survey no. 177, 19th round, vital rates in India. National Sample Survey Organisation.

Dyfyniad Arddull Chicago

India. Directorate of National Sample Survey. National Sample Survey No. 177, 19th Round, Vital Rates in India. Delhi: National Sample Survey Organisation, 1970.

Dyfyniad MLA

India. Directorate of National Sample Survey. National Sample Survey No. 177, 19th Round, Vital Rates in India. National Sample Survey Organisation, 1970.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.