Census of India 1981
Bihar: households and household population by language mainly spoken in the household - Delhi Controller of Publications 1988 - 785+p. - Census of India 1981. Series-4, Bihar. Paper 1 of 1987 .
A81x54 In2/81/4/Pap1/1987
Bihar: households and household population by language mainly spoken in the household - Delhi Controller of Publications 1988 - 785+p. - Census of India 1981. Series-4, Bihar. Paper 1 of 1987 .
A81x54 In2/81/4/Pap1/1987