& R.R.K. Hartmann eds. Butler, C.S. books & textbook
A reader on language variety (Exeter linguistic studies ; v. 1)
& R.R.K. Hartmann eds. Butler, C.S. C.T. Lawrence Butler Christopher S. Butler
University of Exeter /1976T Paperback / 131 Pages
isbn-10: 0859890511 / isbn-13: 9780859890519
