A

indicates years of economic census publication for which Columbia has no print holdings.
Clicking on any of the table headings will take you to a page which describes the overall scope and intent of that particular census series, as well as information about sources for updating data between censuses. Similarly, there are links to pages with information for each year that the economic censuses were conducted, 1972-2002.
The Census Bureau also conducts numerous
economic surveys each year.
A most useful book is:
Boettcher, Jennifer C.
Industry Research Using the Economic Census.Westport, Conn. : Greenwood Press, 2004.
HC 101 .B594 2004 - Business Reference