Wright's rapid calculator
By: by T.F. Wright
Edition: 2nd ed., rev. and enl.
Publisher: Print Shop
Published: 1913
Place of publication: St. Catharines [Ont.]
Language: eng
Number of pages: 71
Subjects: Arithmetic; Study and teaching; Ready-reckoners; Barèmes; Arithmétique; Étude et enseignement
Other titles: Rapid calculator.
Notes: An invaluable aid to efficiency with figures, for use in offices, schools and colleges.