O.P.Khanna. (2000). Production technology- (Vol-I) (1st.). Dhanpat Rai.
Chicago Style aipamenaO.P.Khanna. Production Technology- (Vol-I). 1st. New Delhi: Dhanpat Rai, 2000.
MLA aipamenaO.P.Khanna. Production Technology- (Vol-I). 1st. Dhanpat Rai, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.