Gaya APA
ASTM, . (1997).
ASTM D 4479 - 93; ASTM D 4479 - 00 Standard specification for asphalt roof coatings - asbestos free .
:
ASTM.
Gaya MLA
ASTM, .
"ASTM D 4479 - 93; ASTM D 4479 - 00 Standard specification for asphalt roof coatings - asbestos free".
:
ASTM,
1997.
Diorama.