Traditional and corporate food distribution: collective case studies of a semi-rural area San Cristóbal, Medellín-Colombia Jenifer Puerta-Zapata, Martha Alicia Cadavid-Castro, Karen Valeria Montoya-Betancur, Luz Stella Álvarez-Castaño 157-172 Abstract 197 PDF (Español) 163 XML (Español) 76