Gaya APA
ASTM, . (2010).
ASTM D 946 - 09a. Standard specification for penetration-graded asphalt cement for use in pavement construction .
:
ASTM.
Gaya MLA
ASTM, .
"ASTM D 946 - 09a. Standard specification for penetration-graded asphalt cement for use in pavement construction".
:
ASTM,
2010.
Diorama.