Gaya APA
ASTM, . (2008).
2008 Annual Book of ASTM Standards. Section four construction. Volume 04.02 Concrete and aggregate .
:
ASTM.
Gaya MLA
ASTM, .
"2008 Annual Book of ASTM Standards. Section four construction. Volume 04.02 Concrete and aggregate".
:
ASTM,
2008.
Diorama.