Federico, R. C. (1990). Social welfare in today's world. McGraw-Hill.
Cita Chicago (17th ed.)Federico, Ronald C. Social Welfare in Today's World. New York: McGraw-Hill, 1990.
Cita MLA (8th ed.)Federico, Ronald C. Social Welfare in Today's World. McGraw-Hill, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.