http://pec.lib.wvu.edu/record/P51981984-2001NRAO newsletter. Serial. Printed Ephemera Collection has: no.16 (1984:Mar.1)-no.44 (1990:1 July), no.46 (1991:1 Jan.)-no.49 (1991:1 Oct.), no.52 (1992: 1 July), no.54 (1993:1 Jan.)-no.58 (1994:1 Jan.), no.62 (1995:1 Jan.), no.67 (1996:1 Apr.)-no.73 (1997:1 Oct.), no.75 (1998:1 Apr.)-no.89 (2001:Oct.). <br />National Radio Astronomy Observatory (U.S.)Astronomy--Observations--Periodicals.Radio telescopes--Periodicals.Radio astronomy--Periodicals.14256