1
by Kuyenhoven, A.
Published 1978
Springer US
...Studies in Development and Planning...

2
by Helmers, F.L.C.H.
Published 1979
Springer Netherlands
...Studies in Development and Planning...

3
by Wegelin, E.A.
Published 1978
Springer US
...Studies in Development and Planning...

4
by Berendsen, B.S.M.
Published 1978
Springer US
...Studies in Development and Planning...

5
by Cohen, S.I.
Published 1978
Springer US
...Studies in Development and Planning...

6
by ter Wengel, J.
Published 1980
Springer Netherlands
...Studies in Development and Planning...