CLASSIFICATION SYSTEMS
Government Documents E-Library Home Subject Home  

Dictionary of Occupational Titles L 37.2:OC 1/2/991/V.1-2 Economic Census (1997): Numerical List of Manufactured and Mineral Products C 3.277: North American Industry Classification System: United States, 1997 PREX 2.6/2:IN 27/997/ Standard Industrial Classification Manual 1987 PREX 2.6/2:IN 27/987