International demographic data directory : a computerized information retrieval system for demographic and family planning data.
United States.Bureau of the Census.
United States.Social and Economic Statistics Administration.
[Washington, D.C.] : U.S. Dept. of Commerce, Social and Economic Statistics Administration : Bureau of the Census,
[1972]
Cover title.
"December 1972."
"A United States Department of Commerce Publication."
Information storage and retrieval systems
Demography
Population research.