Citation styles vary, but most of them require the same basic information when citing a source. The point of citations is not just to prevent plagiarism, but to help someone reading your paper locate your sources. The information in the citation helps them do that.
When citing a book, you usually need:
This information appears on the title page or the reverse side of the title page.
(Use the first city when more than one is listed.)
If the chapters each have different authors, you also need the chapter title, chapter author(s), book editor(s), and the pages of the chapter. Use the citation format for a chapter in an edited book instead of a regular book citation.
When citing an article, you usually need:
This information can be found either in the database where you originally located the article, or in a PDF of the article itself (usually on the first page of the article or in the margins).