@incollection{Guzmán11,
author = {Nelson Alvis Guzmán and Luis Alvis Estrada and Fernando De la Hoz Restrepo},
title = {Epidemiologic and Economic Impact of Natural Gas on Indoor Air Pollution in Colombia 2007},
booktitle = {The Impact of Air Pollution on Health, Economy, Environment and Agricultural Sources},
publisher = {IntechOpen},
address = {Rijeka},
year = {2011},
editor = {Mohamed K. Khallaf},
chapter = {18},
doi = {10.5772/16812},
url = {https://doi.org/10.5772/16812}
}