"0, . "
indicactors of social and economic change and their applicat: ion :division for socio-economic analysis sector of social/ - 1 ed. - usa : unesco 1977. - ", 95p.; 27 cm."
92-3-101495-5
science and application
HN400.S6 / .I53 1977
indicactors of social and economic change and their applicat: ion :division for socio-economic analysis sector of social/ - 1 ed. - usa : unesco 1977. - ", 95p.; 27 cm."
92-3-101495-5
science and application
HN400.S6 / .I53 1977