HEARN, D. (1994). Computer Graphics Donald Hearn. Prentice-Hall International.
Lua i Stíl Chicago (17ú heag.)HEARN, Donald. Computer Graphics Donald Hearn. Prentice-Hall International, 1994.
Lua MLA (8ú heag.)HEARN, Donald. Computer Graphics Donald Hearn. Prentice-Hall International, 1994.
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