The resources on this W&L site should be considered reliable sources of advice about what constitutes plagiarism and how to avoid it.
Plagiarism is described in the W&L 2016-2017 Catalog, and cited by the Student Executive Committee, as "the use of another's words or ideas without proper ackowledgement."
More detailed advice and examples are provided in the EC's Plagiarism Pamphlet.
These respected academic sites have been selected for the quality of their advice and its relevance to W&L culture. Some policies and standards differ from W&L.