M. Barr

Reports of the Midwest Category Seminar IV

2014

Reports of the Midwest Category Seminar III

2006

Once Again

2017

Exact categories and categories of sheaves

1971

Thinktacular Thoughts

2015

Story Hour Patterns

1988

Snowboarding

2004

Life Is Tough

2017

Classroom Clips. Displays Awards and Borders

1990

Classroom Clips. Curriculum Copy Art

1990

Build a Board

1991

*- Autonomous Categories

2006

Adventures of Randy the Little Dog Who Went Out of the Yard

1986

Reports of the Midwest Category Seminar V

2006