Lua APA (7ú heag.)

Lipsey, R. (1986). An intro to positive economics (6th.). ELBS.

Lua i Stíl Chicago (17ú heag.)

Lipsey, Richard. An Intro to Positive Economics. 6th. London: ELBS, 1986.

Lua MLA (9ú heag.)

Lipsey, Richard. An Intro to Positive Economics. 6th. ELBS, 1986.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.