Edwards, P. (1967). The encyclopedia of philosophy. New York: MacMillan Company.
Fara, P. (1999). Catch a falling apple: Isaac Newton and myths of genius. Endeavour, 23, 167-171.
Gale Group Stuff (1999). Encyclopedia of world biography. New York: MacMillan Company.
Grolier Inc. (2000). Isaac Newton. The New Book of Popular Science, 1. Danbyry, Conn: Grolier.
Goldstein, L., Hill, M., & Lay, D. (1999). Encyclopedia of science and technology. London: Oxford Press.
Hall, R. (1992). Isaac Newton. London: Blackwell. Hall, R. (2001).
Isaac Newton.Retrieved March 1, 2002 from World Wide Web: http://www. Newton.cam.uk/newtlife.html.
Isaac Newton (1642-1727). (1996). Retrieved March 2, 2002 from World Wide Web: http://www.physics.gmu.edu/classinfo/astr103/CouseNotes/ECText/Bios/ newton.html.
Keesing, R. (1998). The history of Newton’s apple tree. Contemporary Physics, 39, 377-392.
Newton, I. (1687). Philosophiae naturalis principia mathematica. (F. Cajori, Trans.) California: University of California Press.
North, J. (1967). Isaac Newton. London: Oxford University Press.
Sullivat, R. (1998). When the apple falls. Astronomy, 26, 55-63.
Westfall, R. (1993). The life of Isaac Newton. Cambridge: Cambridge University Press.
http://www.hao.ucar.edu/public/education/sp/images/newton.html
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