Developing the framework for safe and efficient mobile payments [electronic resource] : hearing before the Committee on Banking, Housing, and Urban Affairs, United States Senate, One Hundred Twelfth Congress, second session, on examining the framework for safe and efficient mobile payments, March 29 and July 10, 2012.
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Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2013.