Vī. Esa. Varmā (Bhārata ke Mahārajisṭrāra aura Janagaṇanā Āyukta) = Comparative primary census abstract, 1971 & 1981. Series 1, India / V.S. Verma (Registrar General & Census Commissioner, India)
Ravīndra Gupta (Nideśaka Janagaṇana Paricālana, Uttara Pradeśa) = Household population by religion of head of household (upto tahsil, and town level), Series 22, Uttar Pradesh : paper 1 of 1985 / Ravindra Gupta (Director of Census Operations, Uttar Pradesh)