Bulletin of the Faculty of Science, Riyadh University. 

 - Riyad, Saudi Arabia :    Faculty of Science Riyadh University,    19 71- 
 - v. :    ill. ;    23 cm. 
 - Annual 
 - Vol. 3 (1971)- 
<br/><br/>  Latest issue consulted: Vol.3  (1971). 
<br/><br/><label>Dewey Class. No.: </label>500