McSwain, Eldridge Tracy <br/><br/>
Matemática 6 
 Matemática seis 
E.T. McSwain, Kenneth E. Brown, Bernard H. Gundlach ; traducción por Mariano García Rodríguez ... [et al.]. 
 - River Forest, Ill.  Laidlaw Bros.  c1966. 
 - 336 p.  ill.(some col.)  24 cm. 
<br/><br/> On cover: McSwain, Brown, Gundlach and Cooke. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)