Lua APA (7ú heag.)

British Standards Institution. (1971). Methods of test for silencers for air distribution systems. B.S.I..

Lua i Stíl Chicago (17ú heag.)

British Standards Institution. Methods of Test for Silencers for Air Distribution Systems. London: B.S.I., 1971.

Lua MLA (8ú heag.)

British Standards Institution. Methods of Test for Silencers for Air Distribution Systems. B.S.I., 1971.

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