TY - RPRT TI - Monitoring Colonias Development along the United States-Mexico Border: A Process Application using GIS and Remote Sensing in Douglas, Arizona, and Agua Prieta, Sonora AU - Laura M. Norman AU - Angela J. Donelson AU - Edwin L. Pfeifer AU - Alven H. Lam AU - Kenneth J. Osborn PY - 2004 DO - 10.3133/ofr20041212 UR - https://pubs.usgs.gov/publication/ofr20041212 ID - ofr20041212 ER -