Reihe Lecture Notes in MathematicsM. Barr × Reports of the Midwest Category Seminar III M. BarrSpringer BerlineBook2006 *- Autonomous Categories M. BarrSpringer BerlineBook2006 Exact Categories and Categories of Sheaves M. BarrSpringer BerlineBook2006 *- Autonomous Categories M. BarrSpringer BerlinSoftcover1979 Exact Categories and Categories of Sheaves M. BarrSpringer BerlinSoftcover1971 Reports of the Midwest Category Seminar III M. BarrSpringer BerlinSoftcover1969