In-text

According to Cooper (2010, para. 4) ". . ."

Reference List

Cooper, H .L. (2010). A brief history of tactile writing systems for readers with blindness and visual impairments. Retrieved from http://www.tsbvi.edu/seehear/spring06/history.htm

Note: If the page may change over time include the retrieval date as well, e.g.

Queensland Rail. (n.d.). Queensland Rail free wi-fi. Retrieved January 6, 2011, from www.queenslandrail.com.au/RailServices/City?Pages?wifi.aspx