Putting national plumbing apprenticeship standards to work : a manual of procedure for establishing local joint plumbing apprenticeship standards.

Bibliographic Details

Corporate Author:	United States. Division of Labor Standards
Format:	Government Document eBook
Language:	English
Published:	[Washington] : [s.n.], 1938.
Subjects:	Apprenticeship programs. Vocational education.
Online Access:	Electronic resource (PDF)