Ground-based astronomy :  a ten-year program / 
National Academy of Sciences. 
 - 1 online resource (126 pages) 
<br/><br/><label>ISBN: </label>9780309217743 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy--Research--United States.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Electronic books.
<br/><br/><label>LC Class. No.: </label>QB61  / .G768 1964 
<br/><br/><label>Dewey Class. No.: </label>520.72073