APA (7th ed.) Citation

Gu, X., & Hubert, M. H. (1994). Retroreflectivity of pavement markings--: An analytical and experimental study of measurement instruments. Research and Development Branch, Ministry of Transportation.

Chicago Style (17th ed.) Citation

Gu, Xijia, and Manfred Hans Hubert. Retroreflectivity of Pavement Markings--: An Analytical and Experimental Study of Measurement Instruments. Ontario: Research and Development Branch, Ministry of Transportation, 1994.

MLA (9th ed.) Citation

Gu, Xijia, and Manfred Hans Hubert. Retroreflectivity of Pavement Markings--: An Analytical and Experimental Study of Measurement Instruments. Research and Development Branch, Ministry of Transportation, 1994.