PastPages

MLA

"The Guardian homepage at May 18, 2012, 1:12 p.m. UTC." PastPages. 18 May 2012. Web. 23 May 2013. <http://www.pastpages.org/screenshot/28311/>

APA

The Guardian homepage at May 18, 2012, 1:12 p.m. UTC. (2012, May 18). PastPages. Retrieved from http://www.pastpages.org/screenshot/28311/

Chicago

"The Guardian homepage at May 18, 2012, 1:12 p.m. UTC." PastPages. Last modified May 18, 2012, http://www.pastpages.org/screenshot/28311/.

Wikipedia

{{cite web
    | url = http://www.pastpages.org/screenshot/28311/
    | title = The Guardian homepage at May 18, 2012, 1:12 p.m. UTC
    | publisher = PastPages
    | date = May 18, 2012
    | accessdate = May 23, 2013
    | ref = {{harvid|PastPages-28311|2012}}
}}