engert, M. (1964). the role of industry economic development. National Planning Institute.
Citazione stile Chigago Style (17a edizione)engert, M. The Role of Industry Economic Development. cairo: National Planning Institute, 1964.
Citatione MLA (9a ed.)engert, M. The Role of Industry Economic Development. National Planning Institute, 1964.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.