Hart, R. (1992). Competitive opportunity: How to achieve superior performance in difficult times. Kogan Page.
Citazione stile Chigago Style (17a edizione)Hart, Rupert. Competitive Opportunity: How to Achieve Superior Performance in Difficult Times. London: Kogan Page, 1992.
Citatione MLA (8a ed.)Hart, Rupert. Competitive Opportunity: How to Achieve Superior Performance in Difficult Times. Kogan Page, 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.