(1970). Productivity: The employers' offensive! s.n.].
Lua i Stíl Chicago (17ú heag.)Productivity: The Employers' Offensive! [S.I.: s.n.], 1970.
Lua MLA (8ú heag.)Productivity: The Employers' Offensive! s.n.], 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.