%0 Book Section %B Rhetoric in Transition: Studies in the Nature and Uses of Rhetoric %D 1980 %T Functional Communication: A Situational Perspective %A Bitzer, Lloyd F. %E White, Eugene E. %K evolution %K exigence %K genre %K maturity %K situation %K time %B Rhetoric in Transition: Studies in the Nature and Uses of Rhetoric %I Pennsylvania State University Press %C University Park, PA %P 21–38 %8 1980 %G eng