Report on sunspot observations =
Tai yang hei zi guan ce bao gao.

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Item Link Original Source
Limited (search only)   no.1-20 1964-1968 The Ohio State University
Limited (search only)   no.1-50 1964-1976 University of Michigan
Limited (search only)   no.21-40 1969-1973 The Ohio State University
Limited (search only)   no.41-60 1974-1978 The Ohio State University
Limited (search only)   no.51-75 1977-1985 University of Michigan
Limited (search only)   no.61-71 1979-1983 The Ohio State University
Limited (search only)   v.72-81 1983-1988 The Ohio State University
Limited (search only)   no.76-91 1986-1993 University of Michigan
Limited (search only)   no.82 1988 The Ohio State University
Limited (search only)   no.83-87 1989-1991 The Ohio State University
Limited (search only)   no.90-95 1992-1995 The Ohio State University
Limited (search only)   no.92-94 1993-1994 University of Michigan
Limited (search only)   no.96-98 1995-1996 University of Michigan
Limited (search only)   no.97-100 1996-1997 The Ohio State University
Limited (search only)   no.101-103 1998-2000 The Ohio State University
Limited (search only)   no.104 1999 University of Michigan
Limited (search only)   1957-1959 University of Michigan
Limited (search only)   1960-63 University of Michigan