KHANNA, O. P. (1993). INDUSTRIAL ENGINEERING & MANAGEMENT. CHAROTAR.
Chicago Style aipamenaKHANNA, O P. INDUSTRIAL ENGINEERING & MANAGEMENT. NEW DELHI: CHAROTAR, 1993.
MLA aipamenaKHANNA, O P. INDUSTRIAL ENGINEERING & MANAGEMENT. CHAROTAR, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.