Gaya APA
ASTM, . (2003).
ASTM Standard on Disc 2003; Standard worldwide; Vol. 04.09 Soil and Rock (II): D5714-latest. CD Rom .
:
ASTM Interbnational.
Gaya MLA
ASTM, .
"ASTM Standard on Disc 2003; Standard worldwide; Vol. 04.09 Soil and Rock (II): D5714-latest. CD Rom".
:
ASTM Interbnational,
2003.
Buku.