U.S. Warns Apple, Publishers on E-Book Pricing 0 Randall Gross BooksMarch 2012Thursday, March 8, 2012 at 4:56 am PST • Views: 1,610 online.wsj.com Antitrust Case Apple Inc Biggest U.s Booksellers Cheaper E-books Cover Price E-Book Pricing E-Books Electronic Books IPad Tablet HarperCollins Publishers Inc News Corp