United States. Bureau of the Census.. 1972 economic censuses : procedural history.Washington : For sale by the Supt. of Docs., U. S. Govt. Print. Off., 1976.
Call#: HA37 .U52 1976

 

This book describes the 1972 Economic Censuses, including each publication from the Economic Censuses of 1972. Very useful for identifying the particular publication that you need.