The following citation is recommended:
Missouri Census Data Center, MABLE/Geocorr[90|2k|12|14], Version <x.y>: Geographic Correspondence Engine. Web application accessed <month, year> at: http://mcdc.missouri.edu/websas/geocorr[90|2k|12|14].html
The original MABLE/Geocorr web application was designed and coded by John Blodgett of the University of Missouri St. Louis under contract with the SocioEconomic Data and Applications Center (SEDAC) at CIESIN (Consortium for International Earth Science Network). Technical assistance and coordination was provided by Hendrik Meij of SEDAC.
Support for creation of the geocorr2k and later versions of the application has been through a contract with the Missouri Census Data Center. Programming and support for these later versions by John Blodgett of OSEDA (Office of Social and Economic Data Analysis) at the University of Missouri - Columbia.