1. Alcom A (2003) Embodied energy and CO2 coefficients for NZ building materials. Center for Building Performance Research. Virginia University of Wellington, New Zealand
2. American Association of State Highway and Transportation Officials (1993) AASHTO guide for design of pavement structures, Washington D.C. ISBN: 1560510552
3. American Standard Testing Method (2010) ASTM D6372-05 Standard practice for design, testing, and construction of micro-surfacing. doi: 10.1520/D6372-05R10
4. Anderson J, Weiland C, Muench S (2011) Greenroads™ manual v. 1.5. University of Washington. http://www.greenroads.us
5. Association of Plastic Manufacturers in Europe—APME (2004) http://www.plasticseurope.org/plastics-sustainability/eco-profiles/browse-by-family.aspx