Gaya APA

AASHTO, . (2004). AASHTO M 91-95 (2000) , ASTM C 32-93 (1999) Standard Specification for Sewer and Manhole Brick (Made From Clay or Shale) . : s.n..

Gaya MLA

AASHTO, . "AASHTO M 91-95 (2000) , ASTM C 32-93 (1999) Standard Specification for Sewer and Manhole Brick (Made From Clay or Shale)". : s.n., 2004. Diorama.