The comptometer course in business arithmetic
Subtitle: practical training for modern business
Edition: Rev. ed.
Publisher: Felt & Tarrant mfg. co.
Published: 1931
Place of publication: Chicago, Ill
Language: eng
Number of pages: 195
Subjects: Calculators
Notes: Text runs parallel to back of cover.

"Student's record of progress in comptometer tests" on back lining-paper.