| HathiTrust (HATHI) |
HTDL |
no.115-116 1968; no.117-127 1969; no.128-137 1970; no.139-149 1971; no.150-152, 154-160 1972; no.161-168, 170-171 1973; no.172-180 1974; no.181,183-192 1975; no.193-203 1976; no.204-214 1977; no.215-225 1978; no.226-236 1979; no.237-248 1980; no.249-260 1981; no.261-266 1982 Jan-Jun; no.267-272 1982 Jul-Dec; no.273-284 1983 Jan-Dec; no.285-291 1984 Jan-Jun; no.292-297 1984 Jul-Dec; no.298-309 1985 Jan-Dec; no.310-316 1986 Jan-Jun; no.317-322 1986 Jul-Dec; no.323-328 1987 Jan-Jun; no.329-334 1987 Jul-Dec; no.335-340 1988 Jan-Jun; no.341-345 1988 Jul-Dec; no.346-348,350-357 1989 Jan-Dec; no.358-362,364 1990 Jan-Jun; no.365-369 1990 Jul-Dec; no.370-376 1991 Jan-Jun; no.377-382 1991 Jul-Dec; no.383-389 1992 Jan-Jun; no.390-395 1992 Jul-Dec; no.396-402 1993 Jan-Jun; no.403-407 1993 Jul-Dec; no.408-414 1994 Jan-Jun; no.415-420 1994 Jul-Dec; no.421-427 1995 Jan-Jun; no.428-433 1995 Jul-Dec; no.434,436-439 1996 Jan-May; no.440-443 1996 Jun-Sep
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permanent
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