Ruggles, R., & Ruggles, N. D. (1956). National Income Accounts and Income Analysis. New York: McGraw-Hill Book.
Trích dẫn kiểu ChicagoRuggles, Richard, và Nancy D. Ruggles. National Income Accounts and Income Analysis. New York: McGraw-Hill Book, 1956.
Deismireacht MLARuggles, Richard, và Nancy D. Ruggles. National Income Accounts and Income Analysis. New York: McGraw-Hill Book, 1956.
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