BERKOWITZ, E. N. [. a. (1986). Marketing Eric N. Berkowitz; Roger A. Kerin And William Rudelius. Mosby College Publishing.
Lua i Stíl Chicago (17ú heag.)BERKOWITZ, Eric N. [et al.]. Marketing Eric N. Berkowitz; Roger A. Kerin And William Rudelius. Mosby College Publishing, 1986.
Lua MLA (8ú heag.)BERKOWITZ, Eric N. [et al.]. Marketing Eric N. Berkowitz; Roger A. Kerin And William Rudelius. Mosby College Publishing, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.