World population growth and living standards /
Chen, Kuan-I,
World population growth and living standards / Kuan-I Chen - New York, Bookman Associates [1960] - 96 p. 23 cm.
Population.
301.32 / KUA N60W
World population growth and living standards / Kuan-I Chen - New York, Bookman Associates [1960] - 96 p. 23 cm.
Population.
301.32 / KUA N60W