Political Quotes - Page 219
'From the Popocatepetl to the Limpopo', collected in Bennett Berger (ed) Authors of their Own Lives (1990).
Peter Wilson (2002). “Absolutism in Central Europe”, p.13, Routledge
Presidential Address to the British Association for the Advancement of Science, Exeter, September 3, 1969.
"Management: Tasks, Responsibilities, Practices". Book by Peter F. Drucker, 1973.
Peter Dicken (2007). “Global Shift: Mapping the Changing Contours of the World Economy”, p.516, SAGE Publications Ltd