Tips for you 31 ways to please your customers and increase your earning power

Manylion Llyfryddiaeth
Prif Awdur:	Bergmann, John F.
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	Boston, Mass. CBI Pub. c1979.
Pynciau:	Customer service. Tipping. Golden rule.