Wildermuth, B. (1980). An assessment of the Hansen review team's report on "Singapore's transport & urban development options". s.n..
Lua i Stíl Chicago (17ú heag.)Wildermuth, Bruno. An Assessment of the Hansen Review Team's Report on "Singapore's Transport & Urban Development Options". [S.l.: s.n., 1980.
Lua MLA (8ú heag.)Wildermuth, Bruno. An Assessment of the Hansen Review Team's Report on "Singapore's Transport & Urban Development Options". s.n., 1980.
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