ISI. (1975). IS: SPECIFICATION FOR METALLIC SPIRAL WOUND GASKETS IS : 7719-1975. ISI.
Chicago Style aipamenaISI. IS: SPECIFICATION FOR METALLIC SPIRAL WOUND GASKETS IS : 7719-1975. NEW DELHI: ISI, 1975.
MLA aipamenaISI. IS: SPECIFICATION FOR METALLIC SPIRAL WOUND GASKETS IS : 7719-1975. ISI, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.