O'Brien, Robert C, <br/><br/>
Mrs. Frisby and the rats of Nimh /Robert C. O'Brien ; illustrated by Zena Bernstein. 

 - second Aladdin edition. 
 - New York :  Aladdin Books,  (c)1986. 
 - 233 pages :  illustrations ;  19 cm. 
<br/><br/> Having no one to help her with her problems, a widowed mouse visits the rats whose former imprisonment in a laboratory made them wise and long lived. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Newbery Medal.
<br/><br/><label>LC Class. No.: </label>PZ10  / .M774 1986 PZ10