Degrees Quotes - Page 46
"The Skills of the Economist". Book by Kenneth Ewart Boulding, p. 14, 1958.
"Beyond Our Ken: A Guide to the Battle for London". Book by Andrew Forrester, Robin Pauley, and Stewart Lansley, 1985.
David M. Knight, Justus von Liebig (1998). “The Development of Chemistry, 1789-1914: Familiar letters on chemistry”, p.2, Taylor & Francis
Julie Garwood (2011). “For the Roses”, p.77, Penguin
Sir Joshua Reynolds (1891). “Sir Joshua Reynolds's Discourses”