Zwinger, Ann <br/><br/>
A conscious stillness :  two naturalists on Thoreau's rivers / 
Ann Zwinger and Edwin Way Teale 
 - New York :  Harper & Row,  1982 
 - xx, 243 p. :  ill., maps. ;  25 cm. 
<br/><br/><label>LCCN: </label>81-048153 
<br/><br/><label>Subjects--Personal Names: </label><br/>Thoreau, Henry David, 1817 --1862--Homes and haunts--Massachusetts--Concord region
<br/><br/><label>Subjects--Topical Terms: </label><br/>River ecology--Concord region--Massachusetts
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Concord region (Mass.)--History