Urrea Giraldo, F. 2009. Comments about the book Laboar informality in Colombia 1988-2000. Evolution, theories and models by José Ignacio Uribe and Carlos Humberto Ortiz. Sociedad y Economía. 16 (Jan. 2009), 195–197. DOI:https://doi.org/10.25100/sye.v0i16.4085.