Build your own quadcopterpower up your designs with the parallax Elev-8 
by Donald Norris. 
 - New York, N.Y.  McGraw-Hill Education,  2014 
<br/><br/><label>ISBN: </label>9780071822282 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Quadrotor helicopters Quadrotor helicopters