Cita APA (7th ed.)
Anonymous. (Jul 13, 2011). Cengage Learning and Blackboard Partner to Streamline Access to Digital Solutions and Content. PR Newswire.
Cita Chicago (17th ed.)
Anonymous. "Cengage Learning and Blackboard Partner to Streamline Access to Digital Solutions and Content." PR Newswire Jul 13, 2011.
Cita MLA (9th ed.)
Anonymous. "Cengage Learning and Blackboard Partner to Streamline Access to Digital Solutions and Content." PR Newswire, Jul 13, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.