Tjalve E. Eskild. (1979). A short course in industrial design: Short course. London, Newnes-Butterworths, 1979.
Chicago Style aipamenaTjalve E. Eskild. A Short Course in Industrial Design: Short Course. London, Newnes-Butterworths, 1979, 1979.
MLA aipamenaTjalve E. Eskild. A Short Course in Industrial Design: Short Course. London, Newnes-Butterworths, 1979, 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.