Gaya APA

AASHTO, . (2004). AASHTO M 86-98 (2002) , ASTM C 14-99 Standard Specification for Concrete Sewer, Storm Drain, and Culvert Pipe . : s.n..

Gaya MLA

AASHTO, . "AASHTO M 86-98 (2002) , ASTM C 14-99 Standard Specification for Concrete Sewer, Storm Drain, and Culvert Pipe". : s.n., 2004. Diorama.