Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.