Clear effective writing a PPI manual.

Manylion Llyfryddiaeth
Awduron Corfforaethol:	Philippine Press Institute, San Miguel Corporation
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	[Manila] Philippine Press Institute and the San Miguel Corporation 1968.
Pynciau:	English language > Composition and exercises. Writing.