Various forms of 'invisible' unemployment in agricultural districts
著者
書誌事項
Various forms of 'invisible' unemployment in agricultural districts
（Population problems series, no. 2）
Population Problems Research Council, the Mainichi Shimbun, 1950
Various forms of 'invisible' unemployment in agricultural districts
（Population problems series, no. 2）
Population Problems Research Council, the Mainichi Shimbun, 1950