New York University. Institute of Economic Affairs. Challenge. M. E. Sharpe, etc.].
Citazione stile Chigago Style (17a edizione)New York University. Institute of Economic Affairs. Challenge. [White Plains, N.Y., etc: M. E. Sharpe, etc.].
Citatione MLA (9a ed.)New York University. Institute of Economic Affairs. Challenge. M. E. Sharpe, etc.].
Attenzione: Queste citazioni potrebbero non essere precise al 100%.