1. Rhetoric and Relevance in Technical Writing
2. Burke K., A Rhetoric of Motives, University of California Press, Berkeley, p. 71, 1950.
3. Aristotle, The Rhetoric and the Poetics of Aristotle, Roberts W. R. and Bywater I. (trans.), Corbett E. P. J. (intro.), Modern Library, New York, Book 1, Chapter 9, p. 61, 1984.
4. Shakespeare W., The Complete Works, Xerox Publishing Company, Waltham, Massachusetts, p. 1027, 1971.