new books computational linguistics centering theory discourse edited marilyn walker labs research aravind k joshi university pennsylvania ellen prince university pennsylvania edited collection previously unpublished papers focuses centering theory account local discourse structure developed context computational linguistics cognitive science centering theory attracted attention international interdisciplinary audience authors focus naturally occurring data join general trend towards empiricism research computational models discourse providing significant contribution fastmoving field march 1998 464 pp 019 823687 5 105 00 oxford university press computerassisted language learning context conceptualization michael levy university queensland far development computer assisted language learning call fragmented pages michael levy sets call proper historical interdisciplinary contexts providing comprehensive overview topic drawing published work well international survey among call practitioners eighteen countries looks relationship call theory application conceptual practical roles tutor tool levy also discusses call implications computer programming books call focus specific projects mainly theoretical point view unique text considers call whole analyzing utility computer language learning teaching detailed review current literature matched indepth examination tutortool framework ideal introduction procedure performance call multifaceted reflection today everevolving technology levy study appeal students researchers teachers applied linguistics may 1997 320 pp 17 b w figures 17 tables 019 823631 x paper 26 00 019 823632 8 cloth 65 00 oxford university press information linguistics titles oxford university press email linguistics oupusa org visit oxford university press usa web site http www oupusa org oxford university press usa