Miller, Gertrude M. (1971). BBC pronouncing dictionary of British names. British Broadcasting Corporation. London: Oxford University Press. ISBN978-0-19-431125-0. OCLC154639. The pronunciations were accepted by Sir Peter himself.{{cite book}}: CS1 maint: postscript (link)
Juergensmeyer, Mark (2003). Terror in the mind of God: the global rise of religious violence (3rd ed.). Berkeley: University of California Press. ISBN978-0-520-93061-2. OCLC779141234.
"Humanist". The Humanist: A Rational Approach to the Modern World. London: Rationalist Press Association Limited. 1963. ISSN0018-7380.