Ask for this book at the Reference Desk in the library.
Most online periodical indexes show you exactly how to cite the sources you find. Look for a link that says something like "citation tools," or "cite this article." Click on that link, and you will see the citation in various formats. For this class, choose the citation that is in APA format.
NOTE: You are ultimately responsible for makig sure that your citations are correct. Make sure that your indentations and spacing are correct.
The Purdue Online Writing Lab APA Formatting and Style Guide.