- E-bookAn Introduction to Algebraic TopologyAndrew H. Wallace
- E-bookDifferential TopologyAndrew H. Wallace
- E-bookHomology Theory on Algebraic VarietiesAndrew H. Wallace
- E-bookSéries: Dover Books on MathematicsRobert Gilmore
- E-bookHomology Theory on Algebraic VarietiesAndrew H. Wallace
- E-bookSéries: International Series in Pure and Applied MathematicsN. Dinculeanu