A practical rapid calculator
Subtitle: for the use of schools where the commercial branches are taught, and self-instruction. Embracing the shortest and most practical methods of calculating for a large variety of trades and professions
By: by George A. Deel ...
Publisher: The author
Published: 1900
Place of publication: Poughkeepsie, N.Y
Language: eng
Number of pages: 76
Subjects: Ready-reckoners.