2
Published 1972
OECD Publishing
... the psychological factors, organization of transport facilties, and the role of cost.  ...

3
Published 1972
OECD Publishing
... the psychological factors, organization of transport facilties, and the role of cost.  ...

4
Published 1975
OECD Publishing
..., psychological, political and environmental factors...

5
Published 1989
OECD Publishing
... systems. This report provides an analysis of the social and psychological causes which is a prerequisite...