Lundkvist, S., Helmers, G., & Ytterbom, U. (1980). Specific luminance measurements of road markings and road surfaces in the field: Comparisions between instruments. Statens väg- och trafikinstitut.
Chicago Style (17th ed.) CitationLundkvist, Sven-Olof, Gabriel Helmers, and Uno Ytterbom. Specific Luminance Measurements of Road Markings and Road Surfaces in the Field: Comparisions Between Instruments. Linköping, Sweden: Statens väg- och trafikinstitut, 1980.
MLA (9th ed.) CitationLundkvist, Sven-Olof, et al. Specific Luminance Measurements of Road Markings and Road Surfaces in the Field: Comparisions Between Instruments. Statens väg- och trafikinstitut, 1980.
Warning: These citations may not always be 100% accurate.