@article{713122,
      recid = {713122},
      author = {Das, Ashok,},
      title = {Field theory a path integral approach / [electronic  resource] :},
      publisher = {World Scientific,},
      address = {Singapore ;},
      pages = {xiv, 361 p. :},
      year = {2006},
      url = {http://library.usi.edu/record/713122},
}