Skousen, P. L. (2011). Valve handbook (3rd ed.). McGraw-Hill.
Chicago Style aipamenaSkousen, Philip L. Valve Handbook. 3rd ed. New York, NY: McGraw-Hill, 2011.
MLA aipamenaSkousen, Philip L. Valve Handbook. 3rd ed. McGraw-Hill, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.