APA (7th ed.) Zitazioa
Machine drawing / Gill, P.S: S.K.Kataria 17th ed (17th ed.).
Chicago Style (17th ed.) Zitazioa
Machine Drawing / Gill, P.S: S.K.Kataria 17th Ed. 17th ed.
MLA (9th ed.) Zitazioa
Machine Drawing / Gill, P.S: S.K.Kataria 17th Ed. 17th ed.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.