Citazione Stile APA (7a Edizione)
Williams, T. Positioning for Professionals: How Professional Knowledge Firms Can Differentiate Their Way to Success. Wiley.
Citazione stile Chigago Style (17a edizione)
Williams, Tim. Positioning for Professionals: How Professional Knowledge Firms Can Differentiate Their Way to Success. Nueva York, EUA: Wiley.
Citatione MLA (9a ed.)
Williams, Tim. Positioning for Professionals: How Professional Knowledge Firms Can Differentiate Their Way to Success. Wiley.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.