Gaya APA

AASHTO, . (2004). AASHTO M 170-04 , ASTM C 76M-02 Standard Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe (Metric) . : s.n..

Gaya MLA

AASHTO, . "AASHTO M 170-04 , ASTM C 76M-02 Standard Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe (Metric)". : s.n., 2004. Diorama.