Acro civil service series: Clerk GS 3 - GS 4 

 - New York  Acro Publishing Company Inc.  1955 
 - 69 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Civil service--jobs--study material--US--Clerk
<br/><br/><label>Dewey Class. No.: </label>351.3  / Ac77 1955