RUGGLES, R. (1956). National Income Accounts And Income Analysis. Richard Ruggles And Nancy D. Ruggles. McGraw-Hill.
Chicago-referens (17:e uppl.)RUGGLES, Richard. National Income Accounts And Income Analysis. Richard Ruggles And Nancy D. Ruggles. McGraw-Hill, 1956.
MLA-referens (8:e uppl.)RUGGLES, Richard. National Income Accounts And Income Analysis. Richard Ruggles And Nancy D. Ruggles. McGraw-Hill, 1956.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.