Central Road Research Institute & Seminar on Role of Research in Road Development. (1978). 25 years of road research: Seminar on Role of Research in Road Development, 10 March 1978. Central Road Research Institute.
Chicago-referens (17:e uppl.)Central Road Research Institute och Seminar on Role of Research in Road Development. 25 Years of Road Research: Seminar on Role of Research in Road Development, 10 March 1978. New Delhi: Central Road Research Institute, 1978.
MLA-referens (8:e uppl.)Central Road Research Institute och Seminar on Role of Research in Road Development. 25 Years of Road Research: Seminar on Role of Research in Road Development, 10 March 1978. Central Road Research Institute, 1978.
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