Cardona, G. (2003). Practical proposal for the recovery of production and employment from the municipalities localities. Universidad Pedagógica y Tecnológica de Colombia.
Lua i Stíl Chicago (17ú heag.)Cardona, Guillermo. Practical Proposal for the Recovery of Production and Employment from the Municipalities Localities. Universidad Pedagógica y Tecnológica de Colombia, 2003.
Lua MLA (9ú heag.)Cardona, Guillermo. Practical Proposal for the Recovery of Production and Employment from the Municipalities Localities. Universidad Pedagógica y Tecnológica de Colombia, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
