APA
American association of state highway and transportation officials, .Aashto Guide for Design of Pavement Structures/ 1993. Washington: American association of state highaway and transportation officials.
Chicago
American association of state highway and transportation officials, .Aashto Guide for Design of Pavement Structures/ 1993. Washington: American association of state highaway and transportation officials.
Harvard
American association of state highway and transportation officials, .Aashto Guide for Design of Pavement Structures/ 1993. Washington: American association of state highaway and transportation officials.
MLA
American association of state highway and transportation officials, .Washington: American association of state highaway and transportation officials. .