The first national assesment of mathemátics :  an overview / 
National Assesment of Educational Progress 
 - Washington :  US Goverment,  1975 
 - 52 p. :  il. 
 - Mathematics report;  04-MA-00 .
<br/><br/> "A project of the Education Commission of the states" 
<br/><br/><label>Encabezamiento--Tema: </label><br/>Investigación matemática