The Prewett system
Subtitle: short methods of addition, subtraction, multiplication, division, fractions, interest, discounts, measurements, etc., for the use of bankers, business men, bookkeepers, commercial schools, public schools, private students ...
Edition: [4th ed.].
Publisher: C.W. Prewett
Published: 1916
Place of publication: [Houston, Tex.]
Language: eng
Number of pages: 64
Subjects: Ready-reckoners.
Other titles: How to figure fast.
Notes: Cover title: How to figure fast.