(1972). Natural stone cladding: Non-loadbearing. London: The Council for Codes of Practice British Standards Institution.
Παραπομπή Chicago StyleNatural Stone Cladding: Non-loadbearing. London: The Council for Codes of Practice British Standards Institution, 1972.
Παραπομπή MLANatural Stone Cladding: Non-loadbearing. London: The Council for Codes of Practice British Standards Institution, 1972.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.