Gaya APA

McKenzie, G, T, ;, R, B. (1985). The new world of economics: explorations into human experience (ed. 4). USA: RICHARD D. IRWIN.

Gaya MLA

McKenzie, Gordon, Tullock, ;, Richard, B.. "The new world of economics: explorations into human experience". ed. 4 USA: RICHARD D. IRWIN, 1985. Text.