Harbury, C. D. (1986). Descriptive economics: An Introduction to economic theory and the UK economy (7th ed.). Pitman.
Lua i Stíl Chicago (17ú heag.)Harbury, C. D. Descriptive Economics: An Introduction to Economic Theory and the UK Economy. 7th ed. London: Pitman, 1986.
Lua MLA (9ú heag.)Harbury, C. D. Descriptive Economics: An Introduction to Economic Theory and the UK Economy. 7th ed. Pitman, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.