Gaya APA

3rd and 4th Conference Proceedings : London, 1972, Ann Arbor, 1977. (2004). White Bear Lake, MN: International Society for Asphlat Pavements.

Gaya MLA

3rd and 4th Conference Proceedings : London, 1972, Ann Arbor, 1977. . White Bear Lake, MN: International Society for Asphlat Pavements, 2004. Text.