slide rule
Subtitle: how to use it
By: by Rufus T. Strohm and Archibald De Groot.
Contributors: De Groot, A. 1896-; International Correspondence Schools.
Edition: 2d ed.
Publisher: Laurel
Published: 1951
Place of publication: Scranton, Pa
Language: eng
Number of pages: 95
Notes: A revision of a work with same title prepared by the staff of the International Correspondence Schools, Scranton, Pa., and pub. in 1939.

Includes index.