Marsh, Leonard George <br/><br/>
Approach to mathematics :  a study of groups of seven-year-old children exploring mathematical approach / 
L. G. Marsh 
 - 2nd ed. 
 - London :  A. & C. Black,  1971 
 - 208 p. ;  21 cm. 
<br/><br/><label>ISBN: </label>0713611596 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)--United Kingdom
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United Kingdom--Mathematics--Study and teaching (Elementary)