Final 1970 census plans and four programing systems for computerized data retrieval and manipulation : papers presented at the Conference on Small-Area Statistics, American Statistical Association, New York, N.Y., Aug. 21, 1969.
Conference on Small-Area Statistics(1969. :New York)
United States.Bureau of the Census.
[Washington] : U.S. Govt. Print. Off.,
1969.
Census
Information storage and retrieval systems