Παραπομπή APA
British Standards Institution. (1958). British standard for steel pipe flanges and flanged fittings: (Nominal sizes 1/2 in. to 24 in.) for the petroleum industry. London: British Standards House.
Παραπομπή Chicago StyleBritish Standards Institution. British Standard for Steel Pipe Flanges and Flanged Fittings: (Nominal Sizes 1/2 In. to 24 In.) for the Petroleum Industry. London: British Standards House, 1958.
Παραπομπή MLABritish Standards Institution. British Standard for Steel Pipe Flanges and Flanged Fittings: (Nominal Sizes 1/2 In. to 24 In.) for the Petroleum Industry. London: British Standards House, 1958.
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