APA-referens (7:e uppl.)

National Cooperative Highway Research Program. Summary of progress - National Cooperative Highway Research Program 2005. Highway Research Board, National Research Council.

Chicago-referens (17:e uppl.)

National Cooperative Highway Research Program. Summary of Progress - National Cooperative Highway Research Program 2005. [Washington]: Highway Research Board, National Research Council.

MLA-referens (9:e uppl.)

National Cooperative Highway Research Program. Summary of Progress - National Cooperative Highway Research Program 2005. Highway Research Board, National Research Council.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.