Crawford, R. (1998). Plastics engineering (3rd ed.). Heinemann.
Chicago Style aipamenaCrawford, R.J. Plastics Engineering. 3rd ed. Butterworth: Heinemann, 1998.
MLA aipamenaCrawford, R.J. Plastics Engineering. 3rd ed. Heinemann, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.