(1950). British standards for water fittings: Referred to in the Ministry of Health Model Byelaws series XXI. London: British Standards Institution.
Παραπομπή Chicago StyleBritish Standards for Water Fittings: Referred to in the Ministry of Health Model Byelaws Series XXI. London: British Standards Institution, 1950.
Παραπομπή MLABritish Standards for Water Fittings: Referred to in the Ministry of Health Model Byelaws Series XXI. London: British Standards Institution, 1950.
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