Dyfyniad APA

BURNS, E. M. (1949). The American social security system. Houghton Mifflin Company.

Dyfyniad Arddull Chicago

BURNS, Eveline M. The American Social Security System. Boston: Houghton Mifflin Company, 1949.

Dyfyniad MLA

BURNS, Eveline M. The American Social Security System. Houghton Mifflin Company, 1949.

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