Cooper, Grace Rogers <br/><br/>
Thirteen-star flags  keys to identification 

 - U.S. Govt. Print. Off., Washington  Smithsonian Institution Press; for sale by the Supt. of Docs.  1973 
 - vii, 62 p. : illus. ; 27 cm. 
 - Smithsonian studies in history and technology ; no.21. .
<br/><br/>Bibliography: p. 59-60. 
<br/><br/><label>LCCN: </label>72-008229 //r86 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Flags--United States