This document represents a comprehensive annotated reference to many sources of data on four racial and ethnic minority groups, namely: blacks, persons of Spanish ancestry, minority races other than Negro (American Indians, Japanese, Chinese, Filipinos, Hawaiians, Eskimos, and Aleuts), and ethnic groups other than persons of Spanish ancestry. The directory identifies and describes a large and diverse number of recent demographic, social, and economic data sources published by a number of federal agencies, such as the Census of Population and Housing, Current Population Surveys, and supplementary reports. Included in the appendix are data locator tables which are said to facilitate the location of minority group data from the 1970 census and recent current population surveys. (Author/AM)