Lester, P. M. (2014). Visual communication: Images with messages (6th ed.). Wadsworth/Cengage Learning.
Chicago-viite (17. p.)Lester, Paul Martin. Visual Communication: Images with Messages. 6th ed. Boston: Wadsworth/Cengage Learning, 2014.
MLA-viite (9. p.)Lester, Paul Martin. Visual Communication: Images with Messages. 6th ed. Wadsworth/Cengage Learning, 2014.
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