| 
			 LC numbers   | 
			
			 Description   | 
			
			 Collecting Levels   | 
		
| 
			 HD28-70   | 
			
			 Management and Industrial Management   | 
			
			 2,3   | 
		
| 
			 HD 30.3   | 
			
			 Communication in Mgt.   | 
			
			 2,3   | 
		
| 
			 HD2321-4730.9   | 
			
			 Industry, Large, Medium and Small   | 
			
			 2,3   | 
		
| 
			 HD4801-9999   | 
			
			 Labor. Work. Working Class   | 
			
			 2,3   | 
		
| 
			 HD7255-7256   | 
			
			 Vocational Rehabilitation, Employment of the Handicapped.   | 
			
			 2,3  | 
		
| 
			 HD7260-7780.8   | 
			
			 Industrial Hygiene, Industrial Welfare   | 
			
			 2,3   | 
		
| 
			 HD7795-8027   | 
			
			 Labor Policy. Labor and the State   | 
			
			 2,3   | 
		
| 
			 HD8031-8032   | 
			
			 Labor in Politics. Political activity of the working class   | 
			
			 2,3 see also Political Science   | 
		
| 
			 HD8038 – 8943   | 
			
			 Professions. Professional Employees   | 
			
			 2,3   | 
		
| 
			 HD9000-9999   | 
			
			 Special industries and trades   | 
			
			 2,3   | 
		
| 
			 HE1-9990   | 
			
			 Transportation and Communication   | 
			
			 2,3   | 
		
| 
			 HF1-6182   | 
			
			 Commerce   | 
			
			 2,3   | 
		
| 
			 HF5410-5417.5   | 
			
			 Marketing. Distribution of products   | 
			
			 See Marketing   | 
		
| 
			 HF5717-  5734.5   | 
			
			 Business Communication   | 
			
			 2,3   | 
		
| 
			 T58.4   | 
			
			 Managerial control systems   | 
			
			 2,3 see also CIS/QM and Technology   | 
		
| 
			 T58.5-58.64   | 
			
			 Management information systems   | 
			
			 2,3 see also CIS/QM and Technology   | 
		
| 
			 T58.7-58.8   | 
			
			 Production capacity. Manufacturing capacity   | 
			
			 2,3 see also Technology   |