(2009). Bituminous materials and mixtures, 2009. Volume 2.
Chicago Style (17th ed.) ZitazioaBituminous Materials and Mixtures, 2009. Volume 2. 2009.
MLA (9th ed.) ZitazioaBituminous Materials and Mixtures, 2009. Volume 2. 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.