This page has been validated.
| HD1549 | Gleaning | ||
| HD1580 | Reclamation of agricultural land. Melioration | ||
| HD1635-1702 | Utilization and culture of special classes of lands Including pasture lands, water resources development | ||
| HD1711-1741 | Irrigation | ||
| HD2321-4730.9 | Industry | ||
| HD2329 | Industrialization | ||
| HD2330 | Rural industries | ||
| HD2331-2336 | Home labor. Home based businesses | ||
| HD2337-2339 | Sweatshops | ||
| HD2340.8-2346.5 | Small and medium sized businesses, artisans, handicrafts, trades | ||
| HD2350.8-2356 | Large industry. Factory system. Big business | ||
| HD2365-2385 | Contracting. Letting of contracts | ||
| HD2421-2429 | Trade associations | ||
| HD2709-2930.7 | Corporations Including international business enterprises, diversification, industrial concentration, public utilities | ||
| HD2951-3575 | Cooperation. Cooperative societies | ||
| HD3611-4730.9 | Industrial policy. The state and industrial organization Including licensing of occupations and professions, subsidies, inspection, government ownership, municipal services | ||
| HD4801-8943 | Labor. Work. Working class | ||
| HD4861-4895 | Labor systems | ||
| HD4909-5100.9 | Wages | ||
| HD5106-5267 | Hours of labor Including overtime, shift work, sick leave, vacations | ||
| HD5306-5474 | Labor disputes. Strikes and lockouts | ||
| HD5481-5630.7 | Industrial arbitration. Mediation and conciliation | ||
| HD5650-5660 | Employee participation in management. Employee ownership. Industrial democracy. Works councils | ||
| HD5701-6000.9 | Labor market. Labor supply. Labor demand Including unemployment, manpower policy, occupational training, employment agencies | ||
| HD6050-6305 | Classes of labor Including women, children, students, middle aged and older persons, minorities | ||
| HD6350-6940.7 | Trade unions. Labor unions. Workers' associations | ||
| HD6941-6948 | Employers' associations | ||
