Gaya APA

AASHTO, . (2008). AASHTO M 31/M 31-07; ASTM A 615/A 615-06a. Standard specification for deformed and plain carbon-steel bars for concrete reinforcement . : AASHTO.

Gaya MLA

AASHTO, . "AASHTO M 31/M 31-07; ASTM A 615/A 615-06a. Standard specification for deformed and plain carbon-steel bars for concrete reinforcement". : AASHTO, 2008. Diorama.