evolución, teorías y modelos Uribe G., José I. creator author. Ortiz, Carlos Humberto author. text bibliography Electronic books. ck 2018 Edición digital. monographic spa 1 online resource : illustrations. José Ignacio Uribe, Carlos Humberto Ortiz. Includes bibliographical references. s-ck--- Informal sector (Economics) Colombia Labor supply Colombia HD2346.C7 ebook Uribe G., José I. Cali, Colombia : Universidad del Valle, Programa Editorial, [2006] Primera edición impresa. 9789587657739 https://www.digitaliapublishing.com/a/102145/ https://www.digitaliapublishing.com/a/102145/ DGITA 211128 DIGUVALLE349 eng