00392cam a2200181 4500 20260711133839.0 1493 1493 Control de contaminación del aire Toledo Ordoñez, José Guatemala 1ª spa 104 p. 23 cm. Guatemala Pro Eco 1996 628.5 T649c 0 0 0 0 CG BC BC 2018-03-15 2.00 002179 0 628.5/T649c 002179 2026-07-11 13:38:39 2 2026-07-11 BK 0 0 0 0 CG BC BC 2018-03-15 2.00 002178 0 628.5/T649c 002178 2026-07-11 13:38:39 2 2026-07-11 BK