HOROVITZ JACQUES. (1990). HOW TO WIN CUSTOMERS: USING CUSTOMER SERVICE FOR A COMPETITIVE EDGE. PITMAN PUBLICATIONS.
Lua i Stíl Chicago (17ú heag.)HOROVITZ JACQUES. HOW TO WIN CUSTOMERS: USING CUSTOMER SERVICE FOR A COMPETITIVE EDGE. PITMAN LONDON: PITMAN PUBLICATIONS, 1990.
Lua MLA (9ú heag.)HOROVITZ JACQUES. HOW TO WIN CUSTOMERS: USING CUSTOMER SERVICE FOR A COMPETITIVE EDGE. PITMAN PUBLICATIONS, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.