PATTI CHARLES. (1991). BUSINESS TO BUSINESS ADVERTISING. N.M. TRIPATHI.
Lua i Stíl Chicago (17ú heag.)PATTI CHARLES. BUSINESS TO BUSINESS ADVERTISING. USA: N.M. TRIPATHI, 1991.
Lua MLA (9ú heag.)PATTI CHARLES. BUSINESS TO BUSINESS ADVERTISING. N.M. TRIPATHI, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.