■ Repetition in Arabic Discourse : Paradigms, Syntagms, and the Ecology of Language, Amsterdam, John Benjamins, 1991 ; Linguistic Individual : Self-Expression in Language and Linguistics, New York, Oxford University Press, 1996 ; Qualitative Methods in Sociolinguistics, New York, Oxford University Press, 2000 ; Discourse Analysis, Malden, Massachusetts, Blackwell, 2002.