Spring, Barbara. <br/><br/>
The dynamic Great Lakes / 
 Great Lakes 
by Barbara Spring. 
 - Baltimore, Md. :  AmErica House,  c2001. 
 - 107 p. :  ill., maps,  22 cm. 
<br/><br/>Includes bibliographical references (p.105-107). 
<br/><br/><label>ISBN: </label>1588517314 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biotic communities--Great Lakes.<br/>Natural history--Great Lakes Region.<br/>Ecology--Great Lakes.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Great Lakes--Environmental aspects.