Gaya APA
Institution, B, S. (2010).
Draft BS EN 1338 Concrete Paving Blocks - Requirements and Test Methods. .
England:
European Committee for Standardization.
Gaya MLA
Institution, British, Standards.
"Draft BS EN 1338 Concrete Paving Blocks - Requirements and Test Methods.".
England:
European Committee for Standardization,
2010.
Text.