| Type |  Book |
| ชื่อเรื่อง | Key transportation indicators [electronic resource] : summary of a workshop / Committee on National Statistics, Janet L. Norwood and Jamie Casey, editors ; Division of Behavioral and Social Sciences and Education, National Research Council |
| ผู้แต่ง | National research council (u.s.). Committee on national statistics |
| ISBN | 030950242X (ebook) |
| | 9780309502429 (ebook) |
| พิมพลักษณ์ | Washington, D.C. : National Academy Press, c2002 |
| รูปเล่ม | 1 online resource (x, 41 p.) |
| หัวเรื่อง | Transportation --United States --Statistical services [] |