Better business letters a self-instructional book to develop skill in writing

Manylion Llyfryddiaeth
Prif Awdur:	Reid, James M.
Awduron Eraill:	Silleck, Anne
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	Reading, Mass. Addison-Wesley c1990.
Rhifyn:	4th ed.
Pynciau:	Commercial correspondence > Programmed instruction.