APA (7th ed.) Citation

Siggerud, K. (2002). Highway infrastructure: Physical conditions of the Interstate Highway System have improved, but congestion and other pressures continue. U.S. General Accounting Office.

Chicago Style (17th ed.) Citation

Siggerud, Katherine. Highway Infrastructure: Physical Conditions of the Interstate Highway System Have Improved, but Congestion and Other Pressures Continue. [Washington, D.C.]: U.S. General Accounting Office, 2002.

MLA (9th ed.) Citation

Siggerud, Katherine. Highway Infrastructure: Physical Conditions of the Interstate Highway System Have Improved, but Congestion and Other Pressures Continue. U.S. General Accounting Office, 2002.