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Social security explained
(1980)
Introduction to social welfare
Friedlander, Walter A., (1974)
USA : heute - morgen
(1968)
Straight talk about social security : an analysis of the issues in the current debate
Ball, Robert Myers, (1998)
Social security today and tomorrow
Ball, Robert M., (1978)
Critical choices in the federal social security program (old-age, survivors, and disability insurance)
Ball, Robert Myers, (1976)