DUBISCH, R., & HOOD, V. R. (1979). Basic mathematics with hand-held calculator: A work-text. The Benjamin/Cummings Pub. Co.
Chicago-čujuhus (17. p.)DUBISCH, Roy, juo Vernon R. HOOD. Basic Mathematics with Hand-held Calculator: A Work-text. Menlo Park: The Benjamin/Cummings Pub. Co, 1979.
MLA-čujuhus (9. p.)DUBISCH, Roy, juo Vernon R. HOOD. Basic Mathematics with Hand-held Calculator: A Work-text. The Benjamin/Cummings Pub. Co, 1979.
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