Cita APA (7th ed.)

Burns, E. M. (1949). The American social security system. Houghton Mifflin Co.

Cita Chicago (17th ed.)

Burns, Eveline Mabel. The American Social Security System. Boston: Houghton Mifflin Co, 1949.

Cita MLA (9th ed.)

Burns, Eveline Mabel. The American Social Security System. Houghton Mifflin Co, 1949.

Atenció: Aquestes cites poden no estar 100% correctes.