North American industry classification system, United States /
Executive Office of the President, Office of Management and Budget.

Description

Viewability

Item Link Original Source
Limited (search only)   1997 University of Michigan
Limited (search only)   1998 University of Michigan
Limited (search only)   2002 University of California
Limited (search only)   2002 University of California
Limited (search only)   2007/cloth University of Illinois at Urbana-Champaign