Singh, U.K..
Population education / by U.K. Singh; K.N. Sudarshan. - New Delhi : Discovery Publishing House , 1996 - vi, 299p :
81-7141-360-9
World population qrowth
T(Y:5) / N6
Population education / by U.K. Singh; K.N. Sudarshan. - New Delhi : Discovery Publishing House , 1996 - vi, 299p :
81-7141-360-9
World population qrowth
T(Y:5) / N6