O'halloran, P. J. O. <br/><br/>
A report on international science and mathematical olympiads/ 
P. J. O. O'halloran. 
 - [1st ed.] 
 - Canberra:  Australian Math. Foundations,  1990. 
 - 107 p. 
<br/><br/><label>Dewey Class. No.: </label>510.79  / P111r