Technology Quotes - Page 91
Jawaharlal Nehru (1964). “Glorious Thoughts of Nehru: Being a Treasury of Twelve Thousand Valuable and Inspiring Thoughts of Pandit Jawaharlal Nehru Classified Under Four Hundred Subjects”
Ian Hacking (1983). “Representing and Intervening: Introductory Topics in the Philosophy of Natural Science”, p.135, Cambridge University Press