The Personal Air and Land Vehicle (PAL-V) is a combination car and helicopter. Learn why the PAL-V is a good idea and how it works.
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- Gravatte, Jay. "The Legend of Sleepy Hollow." The Louisville Ghost Hunters Society. (March 26, 2009) http://www.louisvilleghs.com/LGHS_MASTER/SUB/Legends/Sleepy%20Hollow/Sleepy_Hollow.html
- Merksamer, Gregg D. "Professional Cars: Ambulances, Hearses and Flower Cars." Krause Publications. June 2004.
- The Ghosts of Ohio. "Boston Mills -- Hell Town." (March 26, 2009) http://www.ghostsofohio.org/lore/ohio_lore_36.html