ویدیوی رایگان Weather Spotter In Action (Dramatization) را تماشا کنید

Excerpt From "Tornado"

Made possible as a public service by University of California Extension Media Center, United Gas Corporation, and Texas Eastern Transmission Corporation. Cooperation of WKY-TV, Oklahoma City, Oklahoma and Southwestern Bell Telephone Company.

Production Company Calvin Productions
Sponsor U.S. Weather Bureau
Audio/Visual sound, B&W.