1.
Roseberry, W. The Rise of Yuppie Coffees and the Reimagination of Class in the United States. American Anthropologist 98, 762–775 (1996).
2.
Ellis, M. Eighteenth century coffee-house culture. (Pickering & Chatto, 2006).
3.
The Coffee Trail with Simon Reeve | BoB National.
4.
Explore (UCL Library catalogue). http://www.ucl.ac.uk/library/explore/.
5.
Copac (National, Academic and Specialist Library Catalogue). http://copac.ac.uk/.
6.
BoB National. http://bobnational.net/.
7.
Office for National Statistics (ONS) - ONS. http://www.ons.gov.uk/ons/index.html.
8.
TRIP database. http://www.tripdatabase.com/search/advanced.
9.
Welcome to East View - Social Movements, Elections, Ephemera. http://dlib.eastview.com/browse/udb/1590.
10.
DuckDuckGo. https://duckduckgo.com/.
11.
Google. https://www.google.co.uk.
12.
Dogpile (Web Search). http://www.dogpile.com/.
13.
Phil Bradley: Which search engine when? http://www.philb.com/whichengine.htm.