Gaya APA
ASTM, . (1997).
ASTM C 360 - 92 Standard test method for ball penetration in freshly mixed hydraulic cement concrete .
:
ASTM.
Gaya MLA
ASTM, .
"ASTM C 360 - 92 Standard test method for ball penetration in freshly mixed hydraulic cement concrete".
:
ASTM,
1997.
Diorama.