Malkus, Alida. <br/><br/>
Blue-water boundary :  epic highway of the great Lakes and the Sai nt Lawrence / 
by Alida Malkus. 
 - New York :  Hastings House,  c1960. 
 - x, 308 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references (p.292-294) and index. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Great Lakes.<br/>Saint Lawrence Seaway.
<br/><br/><label>Dewey Class. No.: </label>973.0977 MAL