Gaya APA
Institution, B, S. (2000).
BS EN 206-1:2000 Concrete- Part 1 : Specification, Performance, Production and Conformity .
:
BSI.
Gaya MLA
Institution, British, Standards.
"BS EN 206-1:2000 Concrete- Part 1 : Specification, Performance, Production and Conformity".
:
BSI,
2000.
Text.