Gaya APA

Tullock, G., Mckenzie, R, B. (1985). The New World Of Economics (Ed. 1). Amerika Serikat: Richard D. Irwin, inc.

Gaya MLA

Tullock, Gordon., Mckenzie, Richard, B.. "The New World Of Economics". Ed. 1 Amerika Serikat: Richard D. Irwin, inc, 1985. Text.