Animal Quotes - Page 105
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John Muir (2011). “My First Summer in the Sierra: Illustrated Edition”, p.104, Houghton Mifflin Harcourt
"The General Theory of Employment, Interest and Money". Book by John Maynard Keynes, book 4, chapter 12, section 7, p. 161, February, 1936.
Jodi Picoult (2008). “Change of Heart: A Novel”, p.154, Simon and Schuster
Jeffrey Moussaieff Masson (2010). “The Face on Your Plate: The Truth About Food”, p.96, W. W. Norton & Company
Jean-Jacques Rousseau (2012). “Discourse on the Origin of Inequality”, p.7, Courier Corporation
"Through a Window: My Thirty Years with the Chimpanzees of Gombe". Book by Jane Goodall, 2000.
James Thurber (1990). “Collecting Himself: James Thurber on Writing and Writers, Humor and Himself”
"'The Ascent of Man' ('Lower than the Angels')". Documentary TV Mini-Series, Episode 1, 1973.