The professional writing guide : writing well and knowing why / Roslyn Petelin and Marsha Durham. Petelin, Roslyn. Durham, Marsha. Authorship. Written communication. Business writing. English language Rhetoric. 808.042 20 PEP Includes bibliographical references and index. Warriewood, NSW : Business & Professional Publishing, 1992. 1992. 1992 Text x, 230 p. : eng