BHATT, N. D. (1993). ENGINEERING DRAWING. CHAROTAR.
Chicago Style aipamenaBHATT, N D. ENGINEERING DRAWING. INDIANA: CHAROTAR, 1993.
MLA aipamenaBHATT, N D. ENGINEERING DRAWING. CHAROTAR, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.