APA-referens (7:e uppl.)

Ruggles, R., & Ruggles, N. D. (1956). National income accounts and income analysis. McGraw-Hill.

Chicago-referens (17:e uppl.)

Ruggles, Richard, och Nancy D. Ruggles. National Income Accounts and Income Analysis. Nueva York: McGraw-Hill, 1956.

MLA-referens (9:e uppl.)

Ruggles, Richard, och Nancy D. Ruggles. National Income Accounts and Income Analysis. McGraw-Hill, 1956.