Description: The American ephemeris and nautical almanac for the year 1957 /

Corporate Author:	United States Naval Observatory. Nautical Almanac Office
Format:	Book
Published:	Washington: U.S. Government Printing Office, 1955
Subjects:	Ephemerides Nautical almanacs

Physical Description:	xvii, 586 p. ; 25 cm.
Bibliography:	Includes index.