Ruggles, R., & Ruggles, N. D. (1956). National income accounts and income analysis: By Richard Ruggles and Nancy D. Ruggles. 2nd ed. McGraw-Hill.
Chicago Style (17. basım) AtıfRuggles, Richard, ve Nancy D. Ruggles. National Income Accounts and Income Analysis: By Richard Ruggles and Nancy D. Ruggles. 2nd Ed. New York: McGraw-Hill, 1956.
MLA (9th ed.) AtıfRuggles, Richard, ve Nancy D. Ruggles. National Income Accounts and Income Analysis: By Richard Ruggles and Nancy D. Ruggles. 2nd Ed. McGraw-Hill, 1956.
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