KOUNNAS, C. et al. <br/><br/>
Grand Unification with & Without Supersymmetry & Cosmological Implications. 

 - Singapore  World Scientific Pub Co. Pvt.  Ltd.      1984 
 - vii, 425p. 
<br/><br/><label>ISBN: </label>9971-966-39-5 
<br/><br/><label>Dewey Class. No.: </label>539.7