Wright, R. T. <br/><br/>
Technology system/ 
R. Thomas Wright 
 - South Holland:  The goodheart-willcox publishers,  1992. 
 - 480p.:  ill.;  28 cm. 
<br/><br/> Include index 
<br/><br/><label>ISBN: </label>9780870068966 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>LC Class. No.: </label>DUCE T47.W47