DeWeerd H.A <br/><br/>
A contextual approach to scenario construction./ 
H.A DeWeerd. 
 - California:  Rand Corporation.  1973 
 - 11 p.;  28 cm 
 - Rand Corporation papers;  P-5084 .
 - Rand Corporation papers;  P-5084 .
<br/><br/><label>ISBN: </label> Hadiah