APA aipamena

(1972). Expenditure trends in OECD countries 1960- 1980. Paris: OECD.

Chicago Style aipamena

Expenditure Trends in OECD Countries 1960- 1980. Paris: OECD, 1972.

MLA aipamena

Expenditure Trends in OECD Countries 1960- 1980. Paris: OECD, 1972.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.