Industrial accidents and their prevention
Subtitle: November, 1919
By: issued by the Federal board for vocational education
Contributors: Ray, Ralph R.
Series: Bulletin -- 47. Agricultural series no. 7; Bulletin -- no. 47.
Publisher: Govt. print. off.
Published: 1920
Place of publication: Washington
Language: eng
Number of pages: 66
Subjects: Accidents; Prevention; Industrial safety
Notes: Includes tables.

Prepared by Ralph R. Ray. -p. 6.