Dyfyniad APA

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.

Dyfyniad Arddull Chicago

Central Road Research Institute and 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.

Dyfyniad MLA

Central Road Research Institute and 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.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.