Cooperation between the United States and various states in topographic, hydrographic, and geologic work. 

 - Washington,  Govt. print. off.,  1910. 
 - 32 p.  25 cm. 
<br/><br/><label>LCCN: </label>gs 10000291 //r86 
<br/><br/><label>Subjects--Corporate Names: </label><br/>Geological Survey (U.S.)
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geological surveys.
<br/><br/><label>LC Class. No.: </label>QE75  / .C7