00587nam a2200229 a 4500 35455 MX-MoUR 20251007192150.0 000000n 000 0 eng u (janium) 5460 (janium)5460 MX-MoUR spa MX-MoUR MX-MoUR HV113.A2 R3 1994 344.7202026 RAM-LEY 4e Ramírez Fonseca, Francisco. Ley del seguro social. 4a. ed. México Pac 1986. 408 p. Ley del Seguro Social. 0 0 lcc 0 0 RSRV URBC URBC RES 2022-04-28 Compra HV113 A2R3 1994 0047769 2022-04-28 00:00:00 2022-04-28 LIBRR 35455 35455 1