The American Ephemeris and Nautical Almanach for the year 1973 

 - Washington  US Government Publishing Office  1971 
 - 584 p.tab. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy
<br/><br/><label>Subjects--Index Terms: </label>Ephemeris-Nautical Almanach 
<br/><br/><label>Dewey Class. No.: </label>B1801A47f1003