Citation guides (see Citation Styles and Guides) will help with articles and other standard sources, but you may not find examples or specific guidelines for business sources.Just use your best judgment based on the guidelines. Here's an example for sources like Hoovers and globalEdge:
Hoover's, Inc. "Mars, Incorporated." Hoover's, 2014. Accessed 31 Oct. 2014.
globalEdge. "Romania." Michigan State University, 1994 - 2014, globaledge.msu.edu/countries/romania. Accessed 31 Oct. 2014.