Ten-key adding-listing machine and printing calculator course
By: by Peter L. Agnew and William R. Pasewark.
Contributors: Pasewark, William Robert, joint author.
Edition: 3d ed.
Publisher: South-Western Pub. Co.
Published: 1963
Place of publication: Cincinnati
Language: eng
Number of pages: 115
Subjects: Calculators -- Problems, exercises, etc