Vrana, Ralph S. <br/><br/>
The mathematics laboratory  a new teaching approach 
by Ralph S. Vrana. 
 - Englewood Cliffs, N.J.  Prentice-Hall  1975. 
 - 205p. ;  ill. :  24cm. 
<br/><br/>Includes bibliographies 
<br/><br/><label>ISBN: </label>0135631718 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics laboratories.