Gaya APA
ASTM, . (1997).
ASTM C 942 - 86 Standard test method for preplaced aggreagte concrete in the laboratory .
:
ASTM.
Gaya MLA
ASTM, .
"ASTM C 942 - 86 Standard test method for preplaced aggreagte concrete in the laboratory".
:
ASTM,
1997.
Diorama.