• Berens, P., J. Gurney & Rob SiebÁ¶rger. (1996). Making History Standard 2. Johannesburg: Heinemann.
  • Marneweck, L., R. SiebÁ¶rger & L. Torr. (1995). Making History Standard 4. Johannesburg: Heinemann.
  • Perry, M. (1997). Western Civilization. A Brief History. Boston: Houghton Mifflin.
  • Williams, T. I. (2003). A History of Invention. London: Time Warner Books.


Further reading list


  • Gaarder-Juntt, O., (2011), What in the World Is Green Transportation?, (Minnesota)
  • Society and Environment Teachers, Book, (2001), (New South Wales), pp. 18-32
  • Spengle, K.T., (2011), An Illustrated Timeline of Transportation, (Boston)
  • Wilson, A., (1995), Dorling Kindersley visual timeline of transportation, (New York)

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