Evans, J. R., & Berman, B. (1985). Marketing (2nd ed.). Macmillan.
Lua i Stíl Chicago (17ú heag.)Evans, Joel R., agus Barry Berman. Marketing. 2nd ed. New York: Macmillan, 1985.
Lua MLA (9ú heag.)Evans, Joel R., agus Barry Berman. Marketing. 2nd ed. Macmillan, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.