TY - GEN AU - Spivak, Michael TI - [A] Comprehensive introduction to differential geometry: vol. 2 SN - 0914098713 (hbk. ): U1 - 516.36 23rd PY - 1999/// CY - Houston: PB - Publish or Perish, KW - Geometry, Differential KW - Mathematics N1 - Includes bibliography and index ER -