Marshall, R. B.  1867-1949 <br/><br/>
Results of spirit leveling in Arizona, 1899 to 1915, inclusive / 
R.B. Marshall, chief geography. 
 - Washington,  Govt. Print. Off.,  1915. 
 - 123 p.  ill. ;  24 cm. 
 - U.S. Geological survey. Bulletin 573 .
 - United States.  Geological Survey.  Bulletin ;  573. .
<br/><br/> Includes index. 
<br/><br/><label>LCCN: </label>gs 15000807  
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Arizona--Altitudes.
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 573