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More Great Links
Sources
- Cohen, Dr. Tom. University of Maryland. Personal interview. October 16, 2008.
- Freeland, Sarah. "Aluminum wheel chocks." EZine. http://ezinearticles.com/?Aluminum-Wheel-Chocks&id=640739
- "About us." Chocks.com. https://www.chocks.com/about_us.php
- "Farmer crushed to death while changing U-joint on older farm truck." Centers for Disease Control. http://www.cdc.gov/NIOSH/FACE/stateface/ia/95ia040.html
- "Mechanical means to secure trucks or trailers to a loading dock." Occupational Safety and Health Administration. August 5, 1981. http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=DIRECTIVES&p_id=1717
- "Model 1912 off-road urethane wheel chocks." Checkers Industrial Safety Products, Inc. http://www.checkersindustrial.com/product.php?id=110
- "New procedure for government vehicles and equipment." Stanford University. August 5, 2008. http://today.slac.stanford.edu/feature/2008/safety-wheel-chocks.asp
- "Simple machines." The Franklin Institute. http://www.fi.edu/qa97/spotlight3/spotlight3.html
