The "official companion to the Publication Manual of the American Psychological Association, Sixth Edition," the blog is written by professionals who work for the APA. They explore all aspects of APA Style, including reference citations of every sort, grammar and usage, the publication process, and social media. Search by topic or submit your own question.
Tutorial is designed for those who have no previous knowledge of APA Style. On the APA website, it shows, among other things, how to cite references in text, and provides selected reference examples as well as formatted sections.
The Purdue Online Writing Lab (OWL) provides this resource, revised according to the 6th edition of the APA manual, offers examples for the general format of APA research papers, in-text citations, endnotes/footnotes, and the reference page.