O?Rourke, Michael J. <br/><br/>
Snow and ice accumulation around solar collector installations / 
by Michael J. O?Rourke 
 - Washington, D.C. :  U.S. Government Printing Office,  1968 
 - v, 69 p. ;  28 cm. 
<br/><br/> Research report prepared for the U.S. department of commerce, National Bureau of Standards under order number NB9 NAAA 6099 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Solar energy--United States<br/>Renewable energy sources--United States
<br/><br/><label>Dewey Class. No.: </label>333.79230973