Beekman, G., & Quinn, M. J. (2008). Tomorrow's technology and you (8th ed.). Pearson Prentice Hall.
Chicago-viite (17. p.)Beekman, George, ja Michael J. Quinn. Tomorrow's Technology and You. 8th ed. Upper Saddle River, N.J: Pearson Prentice Hall, 2008.
MLA-viite (9. p.)Beekman, George, ja Michael J. Quinn. Tomorrow's Technology and You. 8th ed. Pearson Prentice Hall, 2008.
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