Experiments in extension programs presented at the Thrity-second Annual Meeting, January 13-16, 1953.

Experiments in extension programs presented at the Thrity-second Annual Meeting, January 13-16, 1953.

書目詳細資料
企業作者: National Research Council (U.S.). Highway Research Board
格式: 圖書
語言:English
出版: Washington, D.C. Highway Research Board 1953.
叢編:Highway Research Board Bulletin 85.
主題:
Highway engineering > Study and teaching.