Pedal power:   in work, leisure, and transportation / 
edited by James C. McCullagh ; with contributions from David Gordon Wilson ... [et. al.]. 
 - Emmaus, Pa. :  Rodale Press,  c1977. 
 - x, 133 p. :  ill. ;  28 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0878571787 :  $5.95 
<br/><br/><label>LCCN: </label>77006422  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pedal-powered mechanisms.
<br/><br/><label>LC Class. No.: </label>TJ1049  / .P4 
<br/><br/><label>Dewey Class. No.: </label>621.4