Charlie Brown's 'Cyclopedia.  volume 6,  how machines work gears, gizmos, and gadgets / 
based on the Charles M. Schulz. 
 - Mahwah, NJ :  Funk & Wagnalls,  c1990. 
 - 60 p. :  col. ill. ; 
<br/><br/>Machines inside out -- leave it to leavers -- the incredible inclined plane -- round and round, up and dowin -- take action with gears, cranks, and springs -- Who invented...? -- the future is here. 
<br/><br/><label>ISBN: </label>0837400511 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedias and dictionaries<br/>Gear-cutting machines