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1Cyhoeddwyd 1983“...Transportation Research Board, National Research Council,...”
Cylchgrawn -
2Cyhoeddwyd 1998“...Transportation Research Board, National Research Council],...”
Cylchgrawn -
3Cyhoeddwyd 1984“...Transportation Research Board, National Research Council,...”
Llyfr -
4Cyhoeddwyd 1987“...Transportation Research Board, National Research Council,...”
Llyfr -
5gan Rankin, Woodrow W.“...Transportation Research Board, National Research Council,...”
Cyhoeddwyd 1987
Llyfr -
6Cyhoeddwyd 1974“...Transportation Research Board, National Research Council,...”
Cyfresol -
7Cyhoeddwyd 1969“...Highway Research Board, National Research Council,...”
Cyfresol -
8Cyhoeddwyd 1988“...Transportation Research Board, National Research Council,...”
Cylchgrawn -
9Cyhoeddwyd 1986“...Transportation Research Board, National Research Council,...”
Llyfr -
10Cyhoeddwyd 1986“...Transportation Research Board, National Research Council,...”
Llyfr -
11Cyhoeddwyd 1990“...Transportation Research Board, National Research Council,...”
Llyfr -
12Cyhoeddwyd 1991“...Transportation Research Board, National Research Council,...”
Trafodyn Cynhadledd Llyfr -
13gan Levinson, Herbert S.“...Transportation Research Board, National Research Council,...”
Cyhoeddwyd 1991
Llyfr -
14Cyhoeddwyd 1991“...Transportation Research Board, National Research Council,...”
Trafodyn Cynhadledd Llyfr -
15Cyhoeddwyd 1974“...Transportation Research Board, National Research Council,...”
Cyfresol -
16Cyhoeddwyd 2000“...Transportation Research Board, National Research Council,...”
Llyfr -
17Cyhoeddwyd 2002“...Transportation Research Board, National Research Council,...”
Cylchgrawn -
18Cyhoeddwyd 2002“...Transportation Research Board, National Research Council,...”
Llyfr -
19
Cylchgrawn -
20
Electronig Meddalwedd Cyfresol