Plagiarism occurs when a writer takes the ideas of some other author and presents them as his own. When this occurs, it can affect the original writer as he loses the chance to earn the credit he deserves. It also makes it difficult for readers to track the origin of the information they are receiving. In this example, however, the author is not committing plagiarism. He is presenting the ideas he took from the source, but is giving the original source credit by mentioning the name of the authors and the year of publication.
