books.google.co.in - Similarities and differences between speech and writing have been the subject of innumerable studies, but until now there has been no attempt to provide a unified linguistic analysis of the whole range of spoken and written registers in English. In this widely acclaimed empirical study, Douglas Biber...http://books.google.co.in/books/about/Variation_across_Speech_and_Writing.html?id=CVTPaSSYEroC&q=spontaneous+speeches&utm_source=gb-gplus-shareVariation across Speech and Writing
