Cita APA (7a ed.)

Zweig, F. (1951). Productivity and trade unions. B. Blackwell.

Cita Chicago Style (17a ed.)

Zweig, Ferdynand. Productivity and Trade Unions. Oxford [Eng.]: B. Blackwell, 1951.

Cita MLA (9a ed.)

Zweig, Ferdynand. Productivity and Trade Unions. B. Blackwell, 1951.