Examples from the Electronic Sources: APA Style of Citation, by Li and Crane, University of Vermont (http://www.uvm.edu/~xli/reference/apa.html).
Pritzker, T. J. (No date). An Early fragment from central Nepal [Online].
Available: http://www.ingress.com/~astanart/pritzker/pritzker.html
[1995, June 8].
* Write "No date" when
the electronic publication date is not available.
* When citing information
retrieved on the World Wide Web, it is not necessary to repeat the protocol
(HTTP) after "Available" since that is stated in the URL.
Therefore, when citing work from the EJSE, authors should follow this example:
Doe, J. (No Date). How to
get published in the Electronic Journal of Science Education. Electronic
Journal of Science Education [Online].
Available: http://unr.edu/homepage/jcannon/ejse/ejse.html
[V# N#, 1997, September 1].