Chicago

Report:

Data source. Title of table, dates. Prepared by Social Explorer. permalink URL (date accessed).

Example:  U.S. Census Bureau. Population Density, 1960. Prepared by Social Explorer. (accessed Jul 27 13:58:03 EST 2010).

Map:

Title of map, dates. Social Explorer, permalink URL (based on data from ; date accessed). 

Example:  Population Density, 1960. Social Explorer, (based on data from U.S. Census Bureau; accessed Jul 27 17:16:03 EST 2010).

MLA

Report:

Data source. “Title of table, dates.” Social Explorer. Medium. Date posted.

Example:  U.S. Census Bureau. “Population Density, 1960.” Social Explorer. Web. Jul 27 13:58:03 EST 2010.

Map:

“Title of map, dates.” Map. Social Explorer. Social Explorer, n.d. Medium. Date posted. based on data from )

Example:  “Population Density, 1960.” Map. Social Explorer. Social Explorer, n.d. Web. Jul 27 13:58:03 EST 2010. (based on data from U.S. Census Bureau)