1. Recent progress and developments in apprenticeship, by Wm. F. Patterson, director, Bureau of Apprenticeship, address delivered before supervisors of training, Training Division. Office of Industrial Relations, Department of Navy, at Washington. D. C., Apr. 28, 1049. Bookmark Corporate/Agency Authors: Apprenticeship Bureau and Labor Dept. Publisher: Apprenticeship Bureau Date: [1949.] SuDoc number: L 28.8:P 27/26