Gaya APA
Annual Book of ASTM Standarrds 2006.Section 1 Volume 01.01: Iron and Steel Products. (2006).
:
ASTM International.
Gaya MLA
Annual Book of ASTM Standarrds 2006.Section 1 Volume 01.01: Iron and Steel Products.
.
:
ASTM International,
2006.
Text.