Darton, Nelson Horatio,  1865-1948. <br/><br/>
Geothermal data of the United States. 

 -  Govt. Print. Off.,  1920. 
 - 97 p. 
<br/><br/><label>LCCN: </label>gs 20000337  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth temperature.
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 701