@article{482504,
      recid = {482504},
      author = {Prier, Raymond Adolph.},
      title = {Archaic logic symbol and structure in Heraclitus,  Parmenides, and Empedocles / [electronic resource] :},
      publisher = {Mouton,},
      address = {The Hague :},
      pages = {163 p.},
      year = {1976},
      url = {http://library.usi.edu/record/482504},
}