@book{3391, author = {Umanzor, Sergio Napoleon}, title = {Demanda real de técnicos de nivel superior de las empresas productivas en el departamento de San Miguel}, publisher = {Sergio Napoleon Umanzor}, year = {1998}, address = {San Miguel}, url = {https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-retrieve-file.pl?id=82cb7a7180ceadef199a47da90259d46} }