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874 documents found.
Published:
| Park, S. McTish, P. Holman, J. Giancola, A.R. & Davenport, J.S.G.
Published:
| Cottrell Jr., B.H.
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| -
Published:
| Schumacher, R.O.
Published:
| Festinger, L.
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| Adrian, E.D. & Matthews, B.H.C.
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| Bouma, P.J.
Published:
| Bouma, P.J.
Published:
| Centraal bureau voor de Statistiek, hoofdafdeling statistieken van verkeer en vervoer