"hyatt, herman r. "
the handheld calculator:use and applications: / herman.r. hyatt - 1 ed. - usa : john wiley & sons 1979. - "x, 256p.; 27 cm."
0-471-02276-4
calculating-machines--
681. 14 hya
the handheld calculator:use and applications: / herman.r. hyatt - 1 ed. - usa : john wiley & sons 1979. - "x, 256p.; 27 cm."
0-471-02276-4
calculating-machines--
681. 14 hya