Duquino Rojas, L. G. (2011). Transit from rural agricultural society to urban industrial society, in the Bogotá city during the first decades of the twent. Universidad Pedagógica y Tecnológica de Colombia.
Lua i Stíl Chicago (17ú heag.)Duquino Rojas, Luis Gabriel. Transit from Rural Agricultural Society to Urban Industrial Society, in the Bogotá City During the First Decades of the Twent. Universidad Pedagógica y Tecnológica de Colombia, 2011.
Lua MLA (9ú heag.)Duquino Rojas, Luis Gabriel. Transit from Rural Agricultural Society to Urban Industrial Society, in the Bogotá City During the First Decades of the Twent. Universidad Pedagógica y Tecnológica de Colombia, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.