Some references.
- Adámek, Jiří (2004) [1990]. Abstract and Concrete Categories (The Joy of Cats) (PDF). New York: Wiley & Sons. ISBN 0-471-60922-6.
{{cite book}}: Unknown parameter|coauthors=ignored (|author=suggested) (help). - Björner, Anders; Las Vergnas, Michel; Sturmfels, Bernd; White, Neil; Ziegler, Günter M. (1999), Oriented Matroids, Encyclopedia of Mathematics and its Applications, vol. 46 (2nd ed.), Cambridge University Press, ISBN 0-521-77750-X.
- Diestel, Reinhard (2005), Graph Theory, Graduate Texts in Mathematics, vol. 173 (3rd ed.), Springer-Verlag, ISBN 3-540-26183-4.
- Eisenbud, David (1999), Commutative Algebra with a View Toward Algebraic Geometry, Graduate Texts in Mathematics, vol. 150 (3rd ed.), Springer-Verlag, ISBN 0-387-94268-8.
- Freyd, Peter (1964), Abelian categories, Harper and Row. Reprinted 2003.
- Jacobson, Nathan (1951), Lectures in Abstract Algebra, vol. I, D. Van Nostrand Company, ISBN 0-387-90122-1.
- Lang, Serge (2002), Algebra, Graduate Texts in Mathematics, vol. 211 (Revised third ed.), New York: Springer-Verlag, ISBN 978-0-387-95385-4, MR 1878556, Zbl 0984.00001
- Mac Lane, Saunders (1998), Categories for the Working Mathematician, Graduate Texts in Mathematics, vol. 5, Springer-Verlag, ISBN 0-387-98403-8.
- Matsumura, Hideyuki (1989), Commutative Ring Theory, Cambridge Studies in Advanced Mathematics, vol. 8, Cambridge University Press, ISBN 0-521-36764-6.
- McConnell, J. C.; Robson, J. C.; Small, Lance W. (2001), Revised (ed.), Noncommutative Noetherian Rings, Graduate Studies in Mathematics, vol. 30, American Mathematical Society, ISBN 0-8218-2169-5.
- Osborne, M. Scott (2000), Basic Homological Algebra, Graduate Texts in Mathematics, vol. 196, Springer-Verlag, ISBN 0-387-98934-X.
- Shilov, Georgi E. (1977), Silverman, Richard A. (ed.), Linear Algebra, Dover, ISBN 0-486-63518-X.