• 4 Journals, Magazines, Newspapers
• 3 Microforms

• 2 Highway engineering
• 2 United States. Federal Highway Administration
• 1 Curricula
• 1 Delegated legislation
• 1 Federal aid to transportation
• 1 Finance
• 1 National Highway Institute (U.S.)
• 1 Roads
• 1 Study and teaching (Continuing education)
• 1 Technology transfer

• 1 National Highway Institute (U.S.)
• 1 Pan American Institute of Highways

• 4 English
• 1 Spanish

• 3 United States

• 1 Handbooks, manuals, etc
• 1 Indexes

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