The APA got involved in journal publishing in 1923. In 1944, a 32-page guide appeared as an article in the same journal. In response to the growing complexities of scientific reporting, subsequent editions were released in 1974, 1983, 1994, 2001, and 2009. Particularly influential were the “Guidelines for Nonsexist Language in APA Journals,” first published as the gifts of imperfection free pdf modification to the 1974 edition, which provided practical alternatives to sexist language then in common usage.
It was released in July 2009 after four years of development. Sample papers in the first printing of the sixth edition contained errors. October 1, 2009, and shortly thereafter alerted users to the existence of the corrections in an APA blog entry. APA Style uses an author-date reference citation system in the text with an accompanying reference list.
In the APA reference list, the writer should provide the author, year, title, and source of the cited work in an alphabetical list of references. If a reference is not cited in the text, it should not be included in the reference list. The crisis of confidence in research findings in psychology: Is lack of replication the real problem? Or is it something else? Washington, DC: American Psychological Association. Note that the title of a website reference may be italic or not italic. The APA Knowledge Dissemination Program: An overview of 100 years”.