@article{4153,
      author = {Mayr, Otto.},
      url = {http://library.usi.edu/record/4153},
      title = {Feedback mechanisms in the historical collections of the  National Museum of History and Technology.},
      publisher = {Smithsonian Institution Press; [for sale by the Supt. of  Docs., U.S. Govt. Print. Off.]},
      recid = {4153},
      pages = {x, 133 p.},
      address = {Washington,},
      year = {1971},
}