INTERNATIONAL LABOUR OFFICE. (1951). PAYMENT BY RESULTS. OXFORD UNIVERSITY PRESS.
Chicago-referens (17:e uppl.)INTERNATIONAL LABOUR OFFICE. PAYMENT BY RESULTS. DELHI: OXFORD UNIVERSITY PRESS, 1951.
MLA-referens (9:e uppl.)INTERNATIONAL LABOUR OFFICE. PAYMENT BY RESULTS. OXFORD UNIVERSITY PRESS, 1951.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.