CRS studies in the public domain  may 1981 
Congressional Research Service 
 - Washington  United States Government Printing Office  1981 
 - [ca. 20 p.] 
<br/><br/><label>Subjects--Topical Terms: </label><br/>United States of America. Library of Congress. Congressional Research Service<br/>United States - CRS studies in the public domain<br/>Immigration and migration<br/>International trade<br/>national defence.
<br/><br/><label>Dewey Class. No.: </label>027.573  / UNI-C