Industrial arithmetic
Subtitle: an elementary text for boys in industrial, technical, vocational and trade schools, both day and evening
By: by Nelson L. Roray with 86 illustrations.
Publisher: P. Blakiston's son & co.
Published: 1916
Place of publication: Philadelphia
Language: eng
Number of pages: 154
Subjects: Arithmetic -- Early works to 1900
Genres: Early works to 1900.