How do I cite website material that has no author, year or page numbers?
Because the material does not include page numbers, you can include any of the following in the text to cite the quotation (from p. 120 of the Publication Manual):
A paragraph number, if provided; alternatively, you could count paragraphs down from the beginning of the document. An overarching heading plus a paragraph number within that section. Nothing. Just put quotation marks around the words you're using, which the reader can use as a search string. Because there is no date and no author, your text citation would include the first couple of words from the title and "n.d." for no date (e.g., para. 5, "Style List," n.d.). The entry in the reference list might look something like this:
Style list for references. (n.d.). Retrieved January 1, 2001, from http://www.apa.org