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Fields, factories and workshops tomorrow
Kropotkin, Pëtr Alekseevič, (1974)
The origins and development of agro-industrial development in Bulgaria : Sonderdr. aus: R. A. Francisco ... (ed.), Agricultural policies in the USSR and Eastern Europe, Westview Press, Boulder, Colorado, 1980
Wiedemann, Paul, (1980)
Agrarno-promyslennoe kooperirovanie i upravlenie proizvodstvom.
Gubin, Evgenij Pavlovicz, (1976)