(1975). Methods for sampling and testing of mineral aggregates, sands and fillers. London: British Standards Institution.
Παραπομπή Chicago StyleMethods for Sampling and Testing of Mineral Aggregates, Sands and Fillers. London: British Standards Institution, 1975.
Παραπομπή MLAMethods for Sampling and Testing of Mineral Aggregates, Sands and Fillers. London: British Standards Institution, 1975.
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