"Learning good documentation practices is also a key component of academic integrity. However, avoiding charges of plagiarism is not the only reason that a student should learn to document sources. The proper use of a field's preferred documentation style is a sign of competence in a writer. Among the other benefits, it shows that the writer knows the importance of giving credit where credit is due. It therefore helps the writer become part of the community of scholars and assures readers that the writer's work can be trusted" (6).
MLA Handbook for Writers of Research Papers. 8th ed. MLA, 2009.