A user guide to the unix Tm system /  
Rebeca Ph D. Thomas, Jean Yates 
 - 1a. ed. 
 - California :  Osborne-Mc Graw-Hill,  1985 
 - 716 p. :    fig. ; tab. ;    22 cm 
<br/><br/><label>ISBN: </label>78811090 
<br/><br/><label>LC Class. No.: </label> / T 35 
<br/><br/><label>Universal Decimal Class. No.: </label>519.6:681.