HANAN MACK. (1978). CONSULTATIVE SELLING. TARAPOREVALA PUBLICATIONS.
Lua i Stíl Chicago (17ú heag.)HANAN MACK. CONSULTATIVE SELLING. BOMBAY: TARAPOREVALA PUBLICATIONS, 1978.
Lua MLA (9ú heag.)HANAN MACK. CONSULTATIVE SELLING. TARAPOREVALA PUBLICATIONS, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.