linsel, h., & sack, k. (1965). classification of national econom. the institute of national planning.
Citazione stile Chigago Style (17a edizione)linsel, hermann, e kurt sack. Classification of National Econom. cairo: the institute of national planning, 1965.
Citatione MLA (9a ed.)linsel, hermann, e kurt sack. Classification of National Econom. the institute of national planning, 1965.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.