Erickson, F. J., & Vonk, J. A. (1994). Computers: Concepts and implications. B & E Tech.
Chicago-čujuhus (17. p.)Erickson, Fritz J., juo John A. Vonk. Computers: Concepts and Implications. Dubuque, IA: B & E Tech, 1994.
MLA-čujuhus (9. p.)Erickson, Fritz J., juo John A. Vonk. Computers: Concepts and Implications. B & E Tech, 1994.
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