APA aipamena

Richard; Stone, G. (1972). National income and expenditure.

Chicago Style aipamena

Richard; Stone, Giovanna. National Income and Expenditure. Bowes & Bowes, London, 1972.

MLA aipamena

Richard; Stone, Giovanna. National Income and Expenditure. 1972.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.