Michael Spivak - A Comprehensive Introduction to Differential Geometry (3Ed,Publish or Perish,1999) - Vol1
There is document - Michael Spivak - A Comprehensive Introduction to Differential Geometry (3Ed,Publish or Perish,1999) - Vol1 available here for reading and downloading. Use the download button below or simple online reader.
The file extension - PDF and ranks to the Documents category.