I put this link on every syllabus for every class I teach. One of the issues I have with grading papers that are supposed to be APA format is that the students are blissfully unaware of the correct format. They need only read the prompts and type in their material and a correct citation is generated. This is a wonderful tool.
Additionally for a minimal fee, you are able to create whole bibliographies which can be exported...much cheaper than a bibliographic program.