Toft & Mekay <br/><br/>
Practical Mathematics 

 -  SIPS  1947 
 - 236p.  23 cm. 
<br/><br/><br/>Text in English 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>MATH
<br/><br/><label>Dewey Class. No.: </label> / TOF