Hartsuch, Paul Jackson,  1902- <br/><br/>
Think metric now :  a step-by-step guide to understanding and applying the metric system / 
Paul J. Hartsuch. 
 - Chicago :  Follett Publishing,  1974. 
 - vii, 120 p. :  ill. ;  19 cm. 
<br/><br/><label>ISBN: </label>0695804499 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Metric system.