Cita APA

(1989). The astronomical almanac: Data for astronomy, space sciences, geodesy, surveying, navigation and other applications.--. Washington: U.S. Government Printing Office.

Citación estilo Chicago

The Astronomical Almanac: Data for Astronomy, Space Sciences, Geodesy, Surveying, Navigation and Other Applications.--. Washington: U.S. Government Printing Office, 1989.

Cita MLA

The Astronomical Almanac: Data for Astronomy, Space Sciences, Geodesy, Surveying, Navigation and Other Applications.--. Washington: U.S. Government Printing Office, 1989.