BoB National. n.d. http://bobnational.net/.
Copac (National, Academic and Specialist Library Catalogue). n.d. http://copac.ac.uk/.
Dogpile (Web Search). n.d. http://www.dogpile.com/.
DuckDuckGo. n.d. https://duckduckgo.com/.
Ellis, Markman. 2006. Eighteenth Century Coffee-House Culture. London: Pickering & Chatto.
Explore (UCL Library catalogue). n.d. http://www.ucl.ac.uk/library/explore/.
Google. n.d. https://www.google.co.uk.
Office for National Statistics (ONS) - ONS. n.d. http://www.ons.gov.uk/ons/index.html.
Phil Bradley: Which search engine when? n.d. http://www.philb.com/whichengine.htm.
Roseberry, William. 1996. ‘The Rise of Yuppie Coffees and the Reimagination of Class in the United States’. American Anthropologist 98(4):762–75. doi:10.1525/aa.1996.98.4.02a00070.
The Coffee Trail with Simon Reeve | BoB National. n.d.
TRIP database. n.d. http://www.tripdatabase.com/search/advanced.
Welcome to East View - Social Movements, Elections, Ephemera. n.d. http://dlib.eastview.com/browse/udb/1590.