trusk, r. j. (1962). theoretical problems in regional income accounting. the institute of national planning.
Chicago-referens (17:e uppl.)trusk, robert j. Theoretical Problems in Regional Income Accounting. cairo: the institute of national planning, 1962.
MLA-referens (9:e uppl.)trusk, robert j. Theoretical Problems in Regional Income Accounting. the institute of national planning, 1962.
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