Sebold, Mary Theodine  sister <br/><br/>
Learning the basic concepts in fractions and their application in the addition and subtraction of simple fractions 
by Sister Mary Theodine Sebold. 
 - Washington, D.C.  The Catholic university of America press  1946. 
 - 88 p. incl. tables, diagrs.  23 cm. 
<br/><br/> At head of title: The Catholic university of America. 
<br/><br/>Thesis (PH.D.)--Catholic university of America. 
<br/><br/>Bibliography: p. 83-88. 
<br/><br/><label>LCCN: </label>a  47003514  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fractions.--Study and teaching.
<br/><br/><label>LC Class. No.: </label>QA137  / .S43 
<br/><br/><label>Dewey Class. No.: </label>411.407