American Society for Testing and Materials (ASTM). (2007). ASTM Standards on disc: Section fifteen. General Products, Chemical Specialties, and End Use Products. vol. 15.07, November, Sports Equipment and Facilities; Pedestrian/Walkway Safety and Devices; Snow Skiing. ASTM International.
Cita Chicago Style (17a ed.)American Society for Testing and Materials (ASTM). ASTM Standards on Disc: Section Fifteen. General Products, Chemical Specialties, and End Use Products. Vol. 15.07, November, Sports Equipment and Facilities; Pedestrian/Walkway Safety and Devices; Snow Skiing. Philadelphia: ASTM International, 2007.
Cita MLA (9a ed.)American Society for Testing and Materials (ASTM). ASTM Standards on Disc: Section Fifteen. General Products, Chemical Specialties, and End Use Products. Vol. 15.07, November, Sports Equipment and Facilities; Pedestrian/Walkway Safety and Devices; Snow Skiing. ASTM International, 2007.
