engert, m. (1964). structural problems of industry. the institute of national planning.
Citazione stile Chigago Style (17a edizione)engert, m. Structural Problems of Industry. cairo: the institute of national planning, 1964.
Citatione MLA (9a ed.)engert, m. Structural Problems of Industry. the institute of national planning, 1964.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.