Langley, S. P. <br/><br/>
Researches on solar heat 
S. P. Langley and W. B. Hazan 
 - Washington  Government Printing Office  1884 
 - 242p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy<br/>Solar
<br/><br/><label>Universal Decimal Class. No.: </label>523.9  / HAZ