Kerr, C. (1957). Productivity and Labour Relations. productivity and progress.
Citazione stile Chigago Style (17a edizione)Kerr, Clark. Productivity and Labour Relations. New Jersey: productivity and progress, 1957.
Citatione MLA (9a ed.)Kerr, Clark. Productivity and Labour Relations. productivity and progress, 1957.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.