Hyman, Jane Wegscheider. <br/><br/>
The light book :  how natural and artificial light affect our health, mood and behavior / 
Jane Wegsheider Hyman. 
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 - New York :  Ballantine Books,  c1991. 
 - xiv, 257 p. : ill. 
<br/><br/> Includes bibliographical references, glossary and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Light--Physiological effect