The document provides examples of proper and improper ways to cite sources when writing a paper. It uses quotes from a J.K. Rowling speech to demonstrate plagiarism, questionable paraphrasing, and correct citation. The key aspects of citing sources discussed are using quotation marks, providing references to the original author and source, and including sufficient publication information in citations. Proper citation credits the original author and allows readers to find the source, while plagiarism or poor paraphrasing passes off others' work as one's own.