General, property, and disbursing regulations.  Signal Corps, United States Army. 

 - 6th ed., rev. to include November 1, 1917. 
 - Washington :  Govt. Print. Off.,  1918. 
 - 208 p. 
 - Its Manual  no. 7 .
 - United States.  Army.  Signal Corps.  Manual ;  no. 7. .
<br/><br/> "War Department document no. 707. Office of the Adjutant General." 
<br/><br/><label>LCCN: </label>war18000030  
<br/><br/><label>LC Class. No.: </label>UG573  / .A29 1917