DICKSON DEN. (1986). IMPROVE YOUR BUSINESS: WORK BOOK. INTERNATIONAL LABOUR ORGANIZATION.
Citazione stile Chigago Style (17a edizione)DICKSON DEN. IMPROVE YOUR BUSINESS: WORK BOOK. GENEVA: INTERNATIONAL LABOUR ORGANIZATION, 1986.
Citatione MLA (9a ed.)DICKSON DEN. IMPROVE YOUR BUSINESS: WORK BOOK. INTERNATIONAL LABOUR ORGANIZATION, 1986.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.