sack, k. (1964). special conceptions of socialist economy. the institute of national planning.
Citazione stile Chigago Style (17a edizione)sack, kurt. Special Conceptions of Socialist Economy. cairo: the institute of national planning, 1964.
Citatione MLA (9a ed.)sack, kurt. Special Conceptions of Socialist Economy. the institute of national planning, 1964.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.