Cole, Samuel Eugene. <br/><br/>
An assessment of mathematical abilities of secondary students in selected schools of Puerto Rico. 

 - Lincoln :  Nebr,  1970. 
 - 360 p. ;  28 cm. 
<br/><br/> Closed. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical ability--Testing--Puerto Rico.<br/>Mathematics--Study and teaching (Secondary)