APA aipamena

India. Directorate of National Sample Survey. (1967). National sample survey no. 121, 18th round , preliminary estimates of birth and death rates and of the rate of growth of population. National Sample Survey Organisation.

Chicago Style aipamena

India. Directorate of National Sample Survey. National Sample Survey No. 121, 18th Round , Preliminary Estimates of Birth and Death Rates and of the Rate of Growth of Population. Delhi: National Sample Survey Organisation, 1967.

MLA aipamena

India. Directorate of National Sample Survey. National Sample Survey No. 121, 18th Round , Preliminary Estimates of Birth and Death Rates and of the Rate of Growth of Population. National Sample Survey Organisation, 1967.