APA (7th ed.) Zitazioa

Truett, L. J. (1982). Economics. West.

Chicago Style (17th ed.) Zitazioa

Truett, Lila J. Economics. St. Paul Minn: West, 1982.

MLA (9th ed.) Zitazioa

Truett, Lila J. Economics. West, 1982.