@article{415891,
      recid = {415891},
      author = {Steffe, Leslie P. and Thompson, Patrick W.,},
      title = {Radical constructivism in action building on the  pioneering work of Ernst von Glasersfeld / [electronic  resource] :},
      publisher = {Falmer,},
      address = {New York :},
      pages = {xv, 327 p. :},
      year = {2000},
      url = {http://library.usi.edu/record/415891},
}