Gaya APA

AASHTO, . (2008). AASHTO R 18-08. Standard Recommended Practice for establishing and implementing a quality management system for construction materials testing laboratories . : AASHTO.

Gaya MLA

AASHTO, . "AASHTO R 18-08. Standard Recommended Practice for establishing and implementing a quality management system for construction materials testing laboratories". : AASHTO, 2008. Diorama.