00400nam a2200133   45000010006000000050017000060080059000231000029000822450040001112600032001513000011001834400031001946000041002258254320260918153118.00000001979                          mx #   8000000000spa00  aLudwing, Emil, 1881-1948  aBeethoven: vida de un conquistador.  aMéxico :bEditorial Diana  a409 p.  aGrandes Biografías Diana  a1. BEETHOVEN, LUDWING VAN, 1770-1827