India. Registrar General and ex-officio Census Commissioner & Sekhar, A. C. (1968). Census of India, 1961: Economic regionalization of India: problems and approaches. s.n.
Style de citation Chicago (17e éd.)India. Registrar General and ex-officio Census Commissioner et A. Chandra Sekhar. Census of India, 1961: Economic Regionalization of India: Problems and Approaches. s.n, 1968.
Style de citation MLA (9e éd.)India. Registrar General and ex-officio Census Commissioner et A. Chandra Sekhar. Census of India, 1961: Economic Regionalization of India: Problems and Approaches. s.n, 1968.
Attention : ces citations peuvent ne pas être correctes à 100%.