1. 1
    Published 1986
    ...Unesco,...
    Book
  2. 2
    Published 1950
    ...Unesco,...
    Book
  3. 3
    Published 1986
    ...Gower ; Unesco,...
    Book
  4. 4
    Published 1981
    ...Unesco Press,...
    Book
  5. 5
    Published 2000
    ...Unesco Pub.,...
    Book
  6. 6
    Published 1998
    ...Unesco Pub.,...
    Book
  7. 7
    Published 1982
    ...Taylor & Francis ; Unesco,...
    Book
  8. 8
    by Mörner, Magnus
    Published 1985
    ...University of Pittsburgh Press : Unesco,...
    Book
  9. 9
    Published 1991
    ...UNESCO ; M. Nijhoff Publishers ; Sold and distributed in the U.S.A. and Canada by Kluwer Academic Publishers,...
    Book