Dyfyniad APA
Mannering, F. L., Washburn, S. S., & Kilareski, W. P. (2009). Principles of highway engineering and traffic analysis (4th ed.). John Wiley.
Dyfyniad Arddull Chicago
Mannering, Fred L., Scott S. Washburn, and Walter P. Kilareski. Principles of Highway Engineering and Traffic Analysis. 4th ed. Hoboken, NJ: John Wiley, 2009.
Dyfyniad MLA
Mannering, Fred L., et al. Principles of Highway Engineering and Traffic Analysis. 4th ed. John Wiley, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.