Gilbert, Thomas F. <br/><br/>
Thinking metric / 
by Thomas F. Gilbert and Marilyn B. Gilbert. 
 - New York :  Wiley,  1973. 
 - xii, 142 p. :  ill. ;  26 cm. 
<br/><br/>Bibliography: p. 137-139. 
<br/><br/><label>ISBN: </label>0471299014 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Metric system.<br/>Weights and measures--United States.<br/>Weights and measures--Canada.