Jennings, R., & Sidwell, E. H. (1968). Graphics for engineers: A textbook for first and second year engineering students. London: Edward Arnold.
Παραπομπή Chicago StyleJennings, Rowan., and E. Harold Sidwell. Graphics for Engineers: A Textbook for First and Second Year Engineering Students. London: Edward Arnold, 1968.
Παραπομπή MLAJennings, Rowan., and E. Harold Sidwell. Graphics for Engineers: A Textbook for First and Second Year Engineering Students. London: Edward Arnold, 1968.
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