Gaya APA
1997 Annual Book of ASTM Standards. section 4 construction. volume 04.05. Chemical resistant materials; vitrified clay. (1997).
:
ASTM.
Gaya MLA
1997 Annual Book of ASTM Standards. section 4 construction. volume 04.05. Chemical resistant materials; vitrified clay.
.
:
ASTM,
1997.
Text.