■ Linguistic Diversity in Space and Time, Chicago, University of Chicago Press, 1992 ; avec VAGAPOV A., Noxchiin-ingals dosham/Chechen-English and English-Chechen Dictionary, Londres, Curzon/Routledge, 2003 ; Ghalghaai-ingalsii, ingalsa-ghalghaai lughat/Ingush-English and English-Ingush Dictionary, Londres, Curzon/Routledge, 2003.
