Leon, A. (1997). How to become a successful software professional (3rd ed.). Comdex computer publishing.
Styl cytowania ChicagoLeon, Alexix. How to Become a Successful Software Professional. 3rd ed. New Delhi: Comdex computer publishing, 1997.
Styl cytowania MLALeon, Alexix. How to Become a Successful Software Professional. 3rd ed. Comdex computer publishing, 1997.
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