research paper

Threw out united states history , technology development  have played an important role in transforming American society.

2 comments:

  1. UnknownJanuary 25, 2016 at 6:15 AM

    https://en.wikipedia.org/wiki/Elevator
    http://www.engineersgarage.com/invention-stories/elevator-history
    http://nypost.com/2014/02/08/how-elevators-transformed-nycs-social-landscape/
    http://otiselevator.umwblogs.org/impact/

    ReplyDelete
  2. SS MysteryFebruary 3, 2016 at 7:48 AM

    Research Paper incomplete. Need to finish. move sources to bibliography.

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