Gregory, Robert Todd <br/><br/>
Error-free computation :   why it is needed and methods for doing it /  
by Robert Todd Gregory. 
 - Huntington:  Robert E. Krieger,  1980 
 - 152 p. 
<br/><br/><label>ISBN: </label>0898742404 
<br/><br/><label>Universal Decimal Class. No.: </label>681.33:51 G862