Helgen, Judith Cairncross, <br/><br/>
Peril in the ponds :  deformed frogs, politics, and a biologist's quest / 
Judy Helgen. 
 - 1 online resource (260 pages) 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781613762011 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Frogs--Abnormalities--Minnesota.<br/>Frogs--Habitat--Minnesota.<br/>Wetland ecology--Minnesota.<br/>Water--Pollution--Minnesota.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Electronic books.
<br/><br/><label>LC Class. No.: </label>QL668.E2  / .H42 2012 
<br/><br/><label>Dewey Class. No.: </label>597.8/9