The American Ephemeris for the year 1977 
U.S.Government printing office                               
 - Washington  U. S. Government Printing Office  1976 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Almanacs<br/>Astronomy and Astrophysics Thesaurus<br/>Ephemeris
<br/><br/><label>Universal Decimal Class. No.: </label>059:52  / AMP-77