1. 1
    Published 1982
    ...The Board,...
    Book
  2. 2
    by Bowden, M. J.
    Published 1974
    ...North Canterbury Catchment Board and Regional Water Board,...
    Book
  3. 3
    by Bowden, M. J.
    Published 1977
    ...North Canterbury Catchment Board and Regional Water Board,...
    Book