How to use adding and calculating machines
By: Arthur L. Walker, J. Kenneth Roach, J. Marshall Hanna.
Contributors: Roach, J. Kenneth, joint author.; Hanna, J. Marshall, 1907- joint author.
Edition: 4th ed.
Publisher: Gregg Division, McGraw-Hill
Published: 1979
Place of publication: New York
Language: eng
Number of pages: 218
Subjects: Calculators -- Problems, exercises, etc.