Research in optical spectroscopy  present status and prospects 
National Academy of Sciences 
 - Washington  National Academy of Sciences  1968 
 - 35p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus<br/>Optical Spectroscopy<br/>Spectroscopy
<br/><br/><label>Universal Decimal Class. No.: </label>535.33  / NAT