Ritti, R. Richard <br/><br/>
The ropes to skip and the ropes to know 
by R. Richard Ritti and G. Ray Funkhouses 
 - New York  John Wiley  1977 
 - xii, : 271p. : 21cm.  
<br/><br/><label>Dewey Class. No.: </label>650.1 RIT