International classification.

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Item Link Original Source
Limited (search only)   v.1-2 1974-1975 Indiana University
Limited (search only)   v.3-4 1976-1977 Indiana University
Limited (search only)   v.5-6 1978-1979 Indiana University
Limited (search only)   v.5-6 1978-1979 University of Michigan
Limited (search only)   v.7-8 1980-1981 Indiana University
Limited (search only)   v.7-8 1980-1981 University of Michigan
Limited (search only)   v.9-10 1982-1983 University of Michigan
Limited (search only)   v.9 1982 Indiana University
Limited (search only)   v.10-12 1983-1985 Northwestern University
Limited (search only)   v.10 1983 Indiana University
Limited (search only)   v.11-12 1984-1985 Indiana University
Limited (search only)   v.11-12 1984-1985 University of Michigan
Limited (search only)   v.13-16 1986-1989 Northwestern University
Limited (search only)   v.13-15 (1986-88) University of Minnesota
Limited (search only)   v.13-14 1986-1987 University of Michigan
Limited (search only)   v.15-16 1988-1989 University of Michigan
Limited (search only)   v.16-18 1989-91 University of Minnesota
Limited (search only)   v.17-18 1990-1991 University of Michigan
Limited (search only)   v.17-18 1990-1991 Northwestern University
Limited (search only)   v.19 1992 University of Michigan
Limited (search only)   v.19 1992 Northwestern University
Limited (search only)   v.20-21 1993-1994 Northwestern University
Limited (search only)   v.22-23 1995-1996 Northwestern University
Limited (search only)   v.24-25 1997-1998 Northwestern University
Limited (search only)   v.26-27 1999-2000 Northwestern University
Limited (search only)   v.28-29 2001-2002 Northwestern University
Limited (search only)   v.30 2003 Northwestern University