Gaya APA
ASTM, .
(1997).
ASTM C 805 - 94 Standard test method for rebound number of harderned concrete
.
:
ASTM.
Gaya MLA
ASTM, .
"ASTM C 805 - 94 Standard test method for rebound number of harderned concrete".
:
ASTM,
1997.
Diorama.