The American ephemeris for the 20th century
Subtitle: 1900 to 2000 at midnight
By: compiled and programmed by Neil F. Michelsen ; revisions by Rique Pottenger.
Contributors: Pottenger, Rique.
Edition: Rev. 5th ed.
Publisher: ACS Publications
Published: 1991
Place of publication: San Diego, CA
Language: eng
Number of pages: 600
Subjects: Ephemerides
Notes: Tables.