Lua APA (7ú heag.)

ISI. (1975). IS: SPECIFICATION FOR METALLIC SPIRAL WOUND GASKETS IS : 7719-1975. ISI.

Lua i Stíl Chicago (17ú heag.)

ISI. IS: SPECIFICATION FOR METALLIC SPIRAL WOUND GASKETS IS : 7719-1975. NEW DELHI: ISI, 1975.

Lua MLA (9ú heag.)

ISI. IS: SPECIFICATION FOR METALLIC SPIRAL WOUND GASKETS IS : 7719-1975. ISI, 1975.

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