Servicio telefonico al consumidor
By: U de I Servicio Informativo
Series: CHEP -- 1111 SP
Publisher: [Servicio de Extensión Cooperativo, Colegio de Agricultura, Universidad de Illinois a Urbana-Champaign]
Published: 1977
Place of publication: Urbana]
Language: spa
Subjects: Consumer education; Information services
Notes: Text in Spanish.