Reed, John Calvin,  1930- <br/><br/>
Gold veins near Great Falls, Maryland / 
by John C. Reed, Jr., and John C. Reed 
 - Washington, D.C. :  United States Government Printing Office,  1969 
 - iii, 22 p. :  ill., maps (2 fold. col. in pocket) ;  23 cm. 
 - Geological Survey bulletin ;  1286 .
<br/><br/>Bibliography: p. 22 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gold ores--Maryland--Montgomery Co.
<br/><br/><label>Dewey Class. No.: </label>553.410975284