APA aipamena

(1962). Supplemental unemployment benefit plan. [S.l.]: United Steelworkers of America.

Chicago Style aipamena

Supplemental Unemployment Benefit Plan. [S.l.]: United Steelworkers of America, 1962.

MLA aipamena

Supplemental Unemployment Benefit Plan. [S.l.]: United Steelworkers of America, 1962.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.