Rüchardt, Eduard <br/><br/>
Light, visible and invisible. 
Translated by Frank Gaynor. 
 - Ann Arbor  University of Michigan Press  [1958] 
 - 201 p.  illus.  22 cm. 
 - Ann Arbor science library .
<br/><br/><label>LCCN: </label>58005904 /L/r83 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Light<br/>Waves.
<br/><br/><label>LC Class. No.: </label>QC355  / .R813 
<br/><br/><label>Dewey Class. No.: </label>535