1. 1
    by Roberts, Brian K.
    Published 1987
    ...Longman Scientific & Technical,...
    Book
  2. 2
    by Unwin, P. T. H.
    Published 1992
    ...Longman Scientific & Technical ; Wiley,...
    Book
  3. 3
    ...Longman Scientific & Technical ; Wiley,...
    Book
  4. 4
    by Mannion, Antoinette M.
    Published 1991
    ...Longman Scientific & Technical ; Wiley,...
    Book