@article {28269,
	title = {Construction industry craft training in the United States and Canada},
	journal = {Research Summary, Construction Industry Institute (CII)},
	year = {2007},
	url = {https://www.curt.org/wp-content/uploads/2018/12/RT-231-1-Value-of-Craft-Training-Research-Detailed-Report.pdf},
	author = {P Goodrum and Yinggang Wang and C Haas and R Glover and S Vaziri}
}