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U.S. Naval Observatory, Washington, D.C. Observatory report.

U.S. Naval Observatory, Washington, D.C. Report 1967-1968.

U.S. Naval Observatory, Washington, D.C. Report 1968-1969.

U.S. Naval Observatory, Washington, D.C. Report 1969-1970.

U.S. Naval Observatory, Washington, D.C. Report for the period 1 July 1976 - 30 June 1977.

U.S. Naval Observatory, Washington, DC 20392-5100. Report for the period 1 Jul 1987 - 30 Jun 1988.

U.S. Naval Observatory, Washington, DC 20392-5100. Report for the period 1 Jul 1988 - 30 Jun 1989.

U.S. Naval Observatory, Washington, DC 20392-5100. Report for the period 1 Jul 1989 - 30 Jun 1990.

U.S. Naval Observatory, Washington, DC 20392-5100. Report for the period 1 Jul 1990 - 30 Jun 1991.

U.S. Naval Observatory, Washington, DC 20392-5100. Report for the period 1 Jul 1991 - 30 Jun 1992.

U.S. Naval Observatory, Washington, DC 20392-5420. Report for the period 1 Jul 1992 - 30 Jun 1993.

U.S. Naval Observatory, Washington, DC 20392-5420. Report for the period 1 Jul 1993 - 30 Jun 1994.

U.S. Naval Observatory, Washington, DC 20392-5420. Report for the period Jul 1994 - Jun 1995.

U.S. Naval Observatory, Washington, DC 20392-5420. Report for the period Jul 1996 - Jun 1997.

U.S. Naval Observatory, Washington, DC 20392-5420. Report for the period Jul 1997 - Jun 1998.

U.S. Space and Planetary Science - a 7-YEAR Plan

U.S., European ALMA Partners Award Prototype Antenna Contracts

U.S.-India Space Partnership: The Jewel in the Crown

U.S.N. Observatory Washington. Observations of Euphrosyne, made with the Filar-Micrometer of the Equatorial by J. Ferguson