Inter-district and inter-state income differentials, 1955-56. - New Delhi [1963] - 33 p. diagr., tables. 24 cm. - Its Occasional papers, no. 6 . - National Council of Applied Economic Research. Occasional papers, no. 6. . LCCN: sa 64000908 Subjects--Topical Terms: Income--India. LC Class. No.: HC440.I5 / N3