Robinson, C. (1971). Competition for fuel. Institute of Economic Affairs.
Citazione stile Chigago Style (17a edizione)Robinson, Colin. Competition for Fuel. London: Institute of Economic Affairs, 1971.
Citatione MLA (8a ed.)Robinson, Colin. Competition for Fuel. Institute of Economic Affairs, 1971.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.