Abstract
Two reviews published in 1988 examined vendors selling demographic data for use on microcomputers (Levine 1988a, 1988b). Several changes have occurred in the past two years in the way demographic data are packaged and distributed. This review will consider the changes in the data distributed by the U.S. Bureau of the Census and three private vendors: CACI, Inc., National Decision Systems, and Woods and Poole Economics, Inc.

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