Perry, C. R. (1984). Collective bargaining and the decline of the United Mine Workers. Industrial Research Unit, Wharton School, University of Pennsylvania.
Citazione stile Chigago Style (17a edizione)Perry, Charles R. Collective Bargaining and the Decline of the United Mine Workers. Philadelphia: Industrial Research Unit, Wharton School, University of Pennsylvania, 1984.
Citatione MLA (9a ed.)Perry, Charles R. Collective Bargaining and the Decline of the United Mine Workers. Industrial Research Unit, Wharton School, University of Pennsylvania, 1984.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.