Ruggles, R., & Ruggles, N. D. (1956). National Income Accounts and Income Analysis. New York: McGraw-Hill Book.
Chicago Style citaatRuggles, Richard, en Nancy D. Ruggles. National Income Accounts and Income Analysis. New York: McGraw-Hill Book, 1956.
MLA citatieRuggles, Richard, en Nancy D. Ruggles. National Income Accounts and Income Analysis. New York: McGraw-Hill Book, 1956.
Let op: Deze citaties zijn niet altijd 100% accuraat.