Kreh, R. T. <br/><br/>
Masonry skills / 
Richard T. Kreh, Sr. 
 - Albany, N.Y. :  Delmar Publishers Inc.,  1982. 
 - 328 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographies 
<br/><br/><label>ISBN: </label>0827319584 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social skills.