Gray, Jerry L. <br/><br/>
Synapse 

 - North Carolina  Scientific Publications Division  1977 
 - 16p. 
<br/><br/><label>ISBN: </label> USD 1.65 
<br/><br/><label>Source: </label> USD 1.65 
<br/><br/><label>Dewey Class. No.: </label>611.01816 GRA