Hood, R. D. a. V. R. Basic mathematics with hand-held calculator a work-text. The Benyamin Cummings Publishing Company.
Chicago-viite (17. p.)Hood, Roy Dubisch and Vernon R. Basic Mathematics with Hand-held Calculator a Work-text. The Benyamin Cummings Publishing Company.
MLA-viite (8. p.)Hood, Roy Dubisch and Vernon R. Basic Mathematics with Hand-held Calculator a Work-text. The Benyamin Cummings Publishing Company.
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