@book{36331,
	author = {National Joint Steamfitting Apprenticeship Committee. and United States.},
	title = {Suggested local standards for training steamfitting apprentices,},
	publisher = {U.S. Govt. Print. Off.,},
	year = {1940.},
	series = {[U.S. Dept. of Labor. Division of Labor Standards] Bulletin no. 28, part II.},
	address = {Washington,},
	note = {At head of title: United States Department of Labor. Frances Perkins, secretary. Division of Labor Standards. V. A. Zimmer, director.}
}