Ramakumar, R. . Technical demography / R. Ramakumar and Y.S. Gopal. - New Delhi : Wiley Eastern , 1986. - viii,ca.224p. : maps;photose ; 22cm . Includes index ISBN: 0852267436 Rs. 45.00 Subjects--Index Terms: DEMOGRAPHY Dewey Class. No.: 304.6 / RAM/T