Contance, J. (1978). How to become a professional engineer (3rd ed.). McGraw-Hill.
Styl ChicagoContance, John. How to Become a Professional Engineer. 3rd ed. New York: McGraw-Hill, 1978.
Citace podle MLAContance, John. How to Become a Professional Engineer. 3rd ed. McGraw-Hill, 1978.
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