Good, Dale. <br/><br/>
Compton's Encyclopedia and Fact - Index  G - Gyro (pages 1-328) 

 - 66th ed. 
 - USA  Compton's Encyclopaedia Co.  1987 
 - xxi; 420p. 
 - G - Gyro (pages 1-328) .
<br/><br/><label>ISBN: </label>852294441 
<br/><br/><label>Dewey Class. No.: </label>032  / GOO/CRO