Gaya APA
ASTM, . (1997).
ASTM C 939 - 94a Standard test method for flow of grout for preplaced aggregate concrete (flow cone method) .
:
ASTM.
Gaya MLA
ASTM, .
"ASTM C 939 - 94a Standard test method for flow of grout for preplaced aggregate concrete (flow cone method)".
:
ASTM,
1997.
Diorama.