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.

Bibliografiset tiedot
Yhteisötekijä: National Research Council (U.S.). Highway Research Board
Aineistotyyppi: Kirja
Kieli:English
Julkaistu: Washington, D.C. Highway Research Board 1953.
Sarja:Highway Research Board Bulletin 85.
Aiheet:
Highway engineering > Study and teaching.