http://www.liu.edu/cwis/cwp/library/workshop/citapa.htm

http://campusgw.library.cornell.edu/newhelp/res_strategy/citing/apa.html

http://www.apastyle.org/elecref.html

http://owl.english.purdue.edu/owl/resource/560/02/

http://owl.english.purdue.edu/owl/resource/560/01/

http://en.wikipedia.org/wiki/APA_style

http://www.lib.berkeley.edu/instruct/guides/apastyle.pdf

http://www.unc.edu/depts/wcweb/handouts/apa.html

http://www.apastyle.org/

http://www.indiana.edu/~wts/pamphlets/apa_style.shtml

http://www.wooster.edu/psychology/apa-crib.html

http://citationmachine.net/index.php?reqstyleid=2