TY - SER ED - United States. ED - United States. ED - United States Naval Observatory. TI - Astronomical papers prepared for the use of the American ephemeris and nautical almanac SN - 0097-7055 PY - 1879///- CY - Washington PB - Bureau of Navigation, Navy Dept. KW - Ամսագիր KW - Astronomy KW - Observations KW - Periodicals N1 - Some parts issued in revised editions ER -