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.

التفاصيل البيبلوغرافية
مؤلف مشترك: National Research Council (U.S.). Highway Research Board
التنسيق: كتاب
اللغة:English
منشور في: Washington, D.C. Highway Research Board 1953.
سلاسل:Highway Research Board Bulletin 85.
الموضوعات:
Highway engineering > Study and teaching.