Pologne (1) Economic conditions (1) Costs (1) Agriculture (1) Communication (1) Methods (1) Technical assistance (1) Progress (1) Production (Economic theory) (1) Polonaises (1) Investments (1) Farms (1) Farmhouses (1) Farm produce (1) Farm buildings (1) Economics (1) Corporations (1) Cooperative societies (1) Contracts (1) Commercial products (1) Chicks (1) Causation (1) Capital (1) Business enterprises (1) Methods (1) Ngoma (Drum) (1) Management (1) Technique (1) Prices (1) Influence (1)