Security market averages and indexes 
A. M. Quintero Ramos. 
 - Río Piedras, P.R.  University of Puerto Rico, College of Business Administration  1957. 
 - 30 p.  tables. 
<br/><br/> Appendix (p.28) 
<br/><br/>Bibliography : p. 29-30. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Securities