Kelsey, Linda J <br/><br/>
Astronomy  activities and experiments 
Linda J. Kelsey, Darrel B. Hoff, and John S. Neff. 
 - Iowa  Kendall-Hunt Publishing  1974 
 - xiii, 187p. 
<br/><br/><label>ISBN: </label>0-8403-0980-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy<br/>Astronomy and Astrophysics Thesaurus
<br/><br/><label>Universal Decimal Class. No.: </label>52  / KEL