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Walker, Arthur L. 1899-

How to use adding and calculating machines / Arthur L. Walker, J. Kenneth Roach, J. Marshall Hanna. - Fourth Edition. - c1979. - 218 pages : illustrations ; 28 cm.

ISBN: 0070678251

LCCN: 77025896

Subjects--Topical Terms:
Calculators--Problems, exercises, etc.

LC Class. No.: HF5548 / .W3 1979

Dewey Class. No.: 651.82